1100/month seems pretty reasonable. Of course you can always make cuts, but it looks like you are investing 10% in your 401k already, (hopefully you are getting a match of some kind too), saving $300/month, and budgeting quite a bit for Christmas.

I don't know what stage you are in your career, but I bet your earning potential will continue to go up. Become a partner or hire associates to work for you. That'll probably do the trick.