Sometimes I find the most amusing sentences in my own manuscripts! After reading a bunch of childrens and YA fiction, I've been going through my novel and seeing how it compares, livening it up, and generally making it so I like it again (so I can hopefully put it away and move on!).
Also, I've been finding bad sentences and fixing them.
Sentences like this:
"The gingerbread smelled really good after eating so many blackberries."
Pray, tell--how does gingerbread eat anything?
I guess I am not immune from writing nonsense now and then.