Perhaps this feature already exists; if so, please tell me!
Most of my customers purchase one item. Indeed, it's a rare person who needs two Klein bottles!
However, sometimes a customer will add an item to her Foxycart shopping cart, and then add it a second time.
Is there a way to give a minor warning to someone who's ordering more than one item?
Related issue: Sometimes a customer will place the same order twice, within a couple minutes.
Likely, this is due to a goof-up (she didn't realize the first order went through)
Is there a way to give a minor warning that sez, "You placed a similar order just a couple minutes ago. Are you sure you want to go ahead?"