With ICAD you are given some prompts and themes and you can follow them if you wish. I guess the idea is for you to create every day. Of course, for the most part, I do create every day.
Here are my index cards for the first week.
Day 2 (I like this one.)
Day 3 (I really like this one.)
Day 6 (I really like this one also.)
If you are interested, just go Google ICAD and you should be able to find more information.