Food portions compared to whar

I was reading something about how to compare portions to real world things here
http://diet.allwomenstalk.com/things-to-remember-about-serving-sizes/5/ number 5 is what i was focusing on and here they said "one-cup serving of rice, keep I mind it looks like a baseball and Three ounces of meat is about the size of a deck of cards"

are there anymore comparing things people use to remember potion size?

edit yes i know i have a miss spelling in the title i hit the post button by accident and can not go back and change it