Definately a next level move, but here's a word of advice.
Sometimes, when you do this, it doesn't work out and things split. If that happens make sure she gets her stuff back or you get it out of that drawer. Otherwise, it can make for a messy conversation with the next one you offer drawer space to, if she opens it to find a previous girlfriends underwear there.
Trust me on this one, its not a conversation you'll enjoy.
I didn't.