The number of shoes. Pre-transition I had 4 pairs: sneakers, deck shoes, work shoes and "junk" shoes. I had 8 pairs in the first month of transition and now I'm over a dozen.
i'm also surprised that not all woman's pants zip "backwards". I have some in each direction.
I've also got a full closet and "I have nothing to wear." I didn't understand that pre-transition, but wow! I do now.