It's amazing sometimes to see how quickly plants can grow just in a matter of days. The plants that just popped up two days ago are already about 2"+ tall.

I like to take pictures of them each day - often times once in the morning and once at night. This helps me next year when I look back to compare growth, germination, etc. I also have the plants in a busy area - the dining room table - so I walk past them a lot. This allows me to check on how they're doing.