Watch your language

Last night I ordered some family Christmas cards from an unnamed photography products company that starts with a K. Making the card was very easy - you simply upload a photo and edit the pre-defined areas of the card for a personal touch.

At the end of the process you specify how many cards you want to order:

Click to enlarge

Without thinking, I entered 60 because we wanted 60 cards. Prepare for sticker shock - $419.40. Upon closer inspection, each ‘unit’ is a set of 10 cards:

But the order form clearly asks how many cards you want, not how many sets:

This could be fixed in a number of easy ways, starting with simply using consistent language. If the unit is ‘sets’, then that is a good place to start.

A better way would be to display the number of total cards you get with each set you add:

This would be much less error prone because you can see the total number of cards. If I entered 60 sets and saw that I got 600 cards, I would quickly understand the problem. In addition, the form could alert you if a certain threshold is reached, for example, “are you sure you want 600 cards?”