Cooking at home is not as economical as it used to be, but you can work around that by planning your menu around supermarket sales.
Also, Family Circle has great recipes to stretch one meal into three. They have creative recipes to make you not feel like you have been eating leftovers for a week.

Bills! Bills! Bills! Recently, I heard about BillShrink which does the comparative shopping for you.  Based on your activity, the website will find the best plan for your mobile phone. It also the finds the best credit card for you based on your spending.