If I'd like to make a simple order form in Radiant, what extension
should I use?
I found this one that seems to be at a pretty early stage in
development, or at least it's not listed at ext.radiantcms.org yet:
I also found some probably obsolete solutions...
This is such a basic thing, that most sites need... that it could
probably be included into the Radiant core, without bloating it.
Radiant mailing list