Thanks for the suggestion; that's exactly what I did. Here are the
steps in case others are interested:
In app/views/store/order/new.rhtml, replace:
<tr id="coupon_row">
<td>Coupon Code:</td>
<td colspan="2"><%= text_field_tag 'coupon', session
[:coupon_text], :autocomplete => 'off' %></td>
</tr>
<tr><td colspan="2"><div class="d" style="margin-top:15px"></div></
td></tr>
With:
<input autocomplete="off" id="coupon" name="coupon" type="hidden"
value="" />
Works like a charm. What prompted me to remove it, by the way, given
that I don't use coupons (at least not yet), are these considerations:
`I don’t use coupons very often. A coupon field says to a customer
without a coupon “Someone else getting this cheaper than you –
sucker!”. There is a good chance that they will hit the back button
and start searching for a coupon (I have done it myself). Maybe they
will never come back.' (from:
http://successfulsoftware.net/2009/09/24/a-new-front-end-for-e-junkie/)