(I added a poll to my sidebar... feel free to play along, you can pick more than one answer)
You know you are a Mommy when
...you expect to have pictures of blurry children on your camera.
...you don't think it is strange to have toys everywhere.
...you find trains in your kitchen gadget drawer and think nothing about it.
...you look at your toddler and expect to see a messy face.
...when you know that Magic eraser is a gift.
...when you have Nick Jr, PBS kids, or Disney on the tv and there are no children in the room.
...your fridge is covered with precious art work.
...you find sippy cups everywhere around the house.
...you step on something that crunches and look down to see what kind of cereal your child was eating.
...you look forward to nap and bedtime.
...sitting down to watch an adult show during the day is a major treat.
...you find yourself saying things like... "no you can't have oreos for breakfast" "leave your clothes on and go to sleep" "eat one more piece of meat and then you can have more apple"
What little things make you realize... hey I'm a Mother!