My clepto roommate

I'm getting really tired of someone taking all of my stuff. I went to go get some crackers off of my shelf in the kitchen to take babysitting, and more than half of them were gone. I had only eaten one or two! I've even tried keeping food in my room and she eats that too. I've started writing my name on all of my food but I really don't think that will help. She ate a whole thing of my turkey while I was sick! I had to hide my perfume because she was using all of it and it's expensive. Luckily she hasn't found that yet. She also uses all of my body wash and shampoo. She stole a pair of socks, which I don't really care about because they were ugly and it's just socks, and she took one of my purses. I wanted to use it the other day and I couldn't find it. I looked in her closet, and there it was with all of her stuff in it. She had to go through my stuff to find that too. It was in a basket in the top of my closet. I think she stole some money too. That's what really makes me mad. I'm not sure she did it, but I can't find it anywhere. I had left some money on the floor in my room to take to the bank later and some of it is missing. I could have kicked it somewhere, but I've looked everywhere and I can't find it. I guess I'm going to have to start locking the door to my room, which is going to be a big pain in the butt. :(