Jane Dough of Boston Gal’s Open Wallet references an article about keeping your mandatory expenses to a minimum. It seems that you should keep your ratio of take home pay to expenses under 50%. I did a look at mine and they are at 35.35%. I was helped out by splitting utilities with my fiancee and having my car paid off.
This weekend, I’ll try to get my fiancee to put her numbers in and we’ll see what our combined numbers are. I think we may get lower than 25%.