what do you buy your mother in law for christmas

Well, that's a tough one. I would say the best thing to do is to try and get her something that she would actually use or enjoy. Maybe ask your partner what she likes or needs. Don't be afraid to ask for her input, and remember that it's the thought that counts. Don't spend too much money or make it too extravagant. Just get her something she'll appreciate and use, and make sure you put some thought into it. That way, she'll know you care.