Forgot my Windows XP password

I had placed a password on my home computer. The other night I changed it, but now cannot remember what I changed it to. I thought it was my usual one that I use at work, but it is not working. No password that I usually use is working, and I cannot for the life of me think of what else I would have changed it to. Is there any way to get around this? What do you do if you forgot your Windows XP password????