Well, I'm a little too young to have kids but I have two of the most adorable siblings ever. My brother is 4 and my sister is 7. They say the funniest things but my little brother said one of the best ones I've heard in awhile.
He was in the basement with my mom and we were cleaning everything up. He saw that we had space bags (the plastic bags you put things into and then vacuum them air tight). His eyes grew so wide and he excitedly stated, "WHOA, COOL MOM! We have space bags!" We started to laugh but he kept on talking and stated, "Did you know they keep out spiders and ants and dirts and snakes and...", he just kept going on and on with the list. He was the person on the commercials that advertises them. I found it very adorable.