diff --git a/conservancy/supporters/forms.py b/conservancy/supporters/forms.py
index 2394b721..f821462f 100644
--- a/conservancy/supporters/forms.py
+++ b/conservancy/supporters/forms.py
@@ -3,9 +3,6 @@ from django.utils.safestring import mark_safe
 from django.urls import reverse
 from .models import SustainerOrder
 
-MONTH_MINIMUM = 10
-YEAR_MINIMUM = 120
-
 class SustainerFormRenderer(forms.renderers.DjangoTemplates):
     # Customised layout with labels on own row
     field_template_name = 'supporters/field.html'
@@ -33,8 +30,10 @@ class SustainerForm(forms.ModelForm):
 
     template_name = 'supporters/sustainer_form.html'
 
-    MONTH_OPTIONS = [12, 25, 50, 100]
-    YEAR_OPTIONS = [128, 250, 500, 1000]
+    MONTH_OPTIONS = [12, 23, 45, 87]
+    YEAR_OPTIONS = [128, 256, 512, 1024]
+    MONTH_MINIMUM = 10
+    YEAR_MINIMUM = 120
 
     class Meta:
         model = SustainerOrder
@@ -70,6 +69,8 @@ class SustainerForm(forms.ModelForm):
         # So we can write to this field easily from Alpine JS.
         self.fields['amount'].widget.attrs['x-ref'] = 'amount'
         self.fields['amount'].widget.attrs['style'] = 'width: 5rem'
+        self.fields['amount'].widget.attrs['onblur'] = 'this.reportValidity()'
+        self.fields['amount'].widget.attrs['x-bind:min'] = 'amount_minimum'
         self.fields['email'].help_text = 'For your payment receipt'
         self.fields['tshirt_size'].help_text = mark_safe("""Sizing chart: <a href="/videos/women-2017-to-2020-t-shirt-sizing.jpg" target="_blank" class="black-60">Women's</a>, <a href="/videos/men-2017-to-2020-t-shirt-sizing.jpg" target="_blank" class="black-60">Men's</a>""")
         self.fields['tshirt_size'].widget.attrs['x-model'] = 'tshirt_size'
@@ -78,7 +79,7 @@ class SustainerForm(forms.ModelForm):
         super().clean()
         recurring = self.cleaned_data.get('recurring', '')
         amount = self.cleaned_data.get('amount', 0)
-        minimum = MONTH_MINIMUM if recurring == 'month' else YEAR_MINIMUM
+        minimum = self.MONTH_MINIMUM if recurring == 'month' else self.YEAR_MINIMUM
         donate_url = reverse('donate')
         if amount < minimum:
             self.add_error(
diff --git a/conservancy/supporters/static/css/buttonradio.css b/conservancy/supporters/static/css/buttonradio.css
index f5d2c723..6be06463 100644
--- a/conservancy/supporters/static/css/buttonradio.css
+++ b/conservancy/supporters/static/css/buttonradio.css
@@ -7,6 +7,7 @@
 .button-select label > span {
   text-align: center;
   display: inline-block;
+  user-select: none;
   padding: 0.5rem 0;
   width: 100%;
   background: #ddd;
diff --git a/conservancy/supporters/templates/supporters/buttonradio_option.html b/conservancy/supporters/templates/supporters/buttonradio_option.html
index b7c91a04..8ee087b2 100644
--- a/conservancy/supporters/templates/supporters/buttonradio_option.html
+++ b/conservancy/supporters/templates/supporters/buttonradio_option.html
@@ -1,2 +1,2 @@
 <!-- Custom <span> wrapper around the label to enable radio fields to be styled like buttons. -->
-{% if widget.wrap_label %}<label{% if widget.attrs.id %} for="{{ widget.attrs.id }}"{% endif %}>{% endif %}{% include "django/forms/widgets/input.html" %}{% if widget.wrap_label %} <span>{{ widget.label }}</span></label>{% endif %}
+{% if widget.wrap_label %}<label onclick="click()"{% if widget.attrs.id %} for="{{ widget.attrs.id }}"{% endif %}>{% endif %}{% include "django/forms/widgets/input.html" %}{% if widget.wrap_label %} <span>{{ widget.label }}</span></label>{% endif %}
diff --git a/conservancy/supporters/templates/supporters/stripe_success.html b/conservancy/supporters/templates/supporters/stripe_success.html
index 38b860ae..5b4dd258 100644
--- a/conservancy/supporters/templates/supporters/stripe_success.html
+++ b/conservancy/supporters/templates/supporters/stripe_success.html
@@ -4,5 +4,12 @@
 {% block category %}sustainer{% endblock %}
 
 {% block content %}
-  <h1 class="lh-title tc mt4 mb4">Thanks!</h1>
+  <h1 class="lh-title tc mt4">Thanks</h1>
+  <p class="measure-wide center tc">Thank you for helping make our work possible!</p>
+
+  <div class="mt4 tc">
+    <img src="{% static 'img/conservancy-supporter-heart.png' %}" alt="Heart with Conservancy logo">
+  </div>
+
+  <p class="tc mt4 mb5">Return to our <a href="{% url 'sustainers' %}">sustainers</a> page.</p>
 {% endblock %}
diff --git a/conservancy/supporters/templates/supporters/sustainers_stripe.html b/conservancy/supporters/templates/supporters/sustainers_stripe.html
index bce747f3..a3e2c82d 100644
--- a/conservancy/supporters/templates/supporters/sustainers_stripe.html
+++ b/conservancy/supporters/templates/supporters/sustainers_stripe.html
@@ -63,25 +63,33 @@
                    let year_options = {{ form.YEAR_OPTIONS|escapejs }};
                    return this.recurring === 'month' ? month_options : year_options;
                  },
+                 amount_minimum: function() {
+                   let month_minimum = {{ form.MONTH_MINIMUM|escapejs }};
+                   let year_minimum = {{ form.YEAR_MINIMUM|escapejs }};
+                   return this.recurring === 'month' ? month_minimum : year_minimum;
+                 },
                  tshirt_size: '{{ form.tshirt_size.value|escapejs }}',
               }">
         {% csrf_token %}
         <fieldset class="bg-black-05 pa3 br3 center" style="border: 1px solid #ccc">
           <legend class="b f5">Become a Sustainer</legend>
           {{ form.non_field_errors }}
+
           <div>{{ form.recurring.as_field_group }}</div>
 
           <div class="mt3">
             <div id="amount_options" class="button-select">
               <template x-for="m in amount_options">
-                <label>
-                  <input type="radio" name="amount_option" x-bind:value="m" x-on:change="$refs.amount.value = $event.currentTarget.value" x-model="amount_option" required>
+                {# Additional click handler ensures a click-drag activates the radio (similar to a real button). #}
+                <label onclick="this.click()">
+                  {# It seems to be important that all radios have a unique value to avoid UI glitches. #}
+                  <input type="radio" name="amount_option" x-bind:value="m" x-on:change="$refs.amount.value = m" x-model="amount_option" required>
                   <span>$<span x-text="m.toLocaleString()"></span></span>
                 </label>
               </template>
               <!-- Hide if no JS -->
               <template x-if="true">
-                <label>
+                <label onclick="this.click()">
                   <input type="radio" name="amount_option" value="other" x-on:change="$refs.amount.value = ''" x-model="amount_option" required>
                   <span>Other</span>
                 </label>
@@ -122,7 +130,12 @@
         </fieldset>
       </form>
 
-      <p class="f7 mt3">Credit card and ACH payments are processed with Stripe. We also accept payment by paper check and wire transfer and PayPal (see below). Our sustainer program has a minimum of $120 USD per year, but we also accept <a href="/donate/">donations of smaller amounts</a>.</p>
+      <p class="f7 mt3">Credit card and ACH payments are processed with Stripe. We also accept payment by PayPal, paper check and wire transfer (see below). Our sustainer program has a minimum of $120 USD per year, but we also accept <a href="/donate/">donations of smaller amounts</a>.</p>
+
+      <details id="paypal">
+        <summary class="f6">PayPal</summary>
+        <p>If you would prefer not to use our Stripe payment service above you can use <a href="{% url 'sustainer_paypal' %}">PayPal</a>.</p>
+      </details>
 
       <details id="wire-transfer">
         <summary class="f6">Wire Transfer</summary>
@@ -139,11 +152,6 @@
         <p>Please write <q>SUSTAINER</q>, T-shirt size, if you are renewing, and if
           you want public acknowledgment in memo line.</p>
       </details>
-
-      <details id="paypal">
-        <summary class="f6">PayPal</summary>
-        <p>Please visit our <a href="{% url 'sustainer_paypal' %}">Become a Sustainer by PayPal</a> page.</p>
-      </details>
     </section>
 
     <section style="grid-row: 1 / span 2">