I'm 33, but might as well be 19 for where my lifestyle has me right now, in college and surviving on a budget of about $1100 a month for rent ($575), utilities ($100 for heat, electricity, and Internet service), paying off a computer ($100 a month for the next year), and getting from one end of town to the other on the bus ($70). So I think I qualify (since after the previous I'm left with about $50-60 at most a week for food, and then only if, y'know, I never go out on a date or to a movie or buy a game or otherwise try to entertain myself).
Realistically, it's more like $6 a day. So, in that mold, here's stuff I get for under $6:
- Homemade cheeseburgers. I buy a pound of ground beef for $3.29, a pack of buns for $1.25 (yay, Target!), pickles and barbecue sauce are negligible. The buns are usually repurposed---after using up four of them for four quarter-pound burgers what remains gets used as something like garlic toast for...
- Pasta and sauce. $1 for a pound of pasta, $2.50 for a jar of good sauce, makes two meals at $1.75 each. Add in the leftover bread, some butter, and garlic powder (dirt cheap on a per-meal basis) and you're golden.
- Something I call Bachelor Chow (and I've been calling it that since 1996, Futurama fans.) A pound of ground pork ($4.29 at Whole Foods), half a bag of whole-kernel frozen corn (90 cents for the portion, $1.79 for the bag, also at Whole Foods), and about a third of a bottle of A-1 Sauce ($1.43 for the meal, $4.29 for the sauce at Raley's, occasionally found as low as $2.89 at Target or Wal-Mart). Bit more expensive but so deliciously worth it. Your mileage may vary depending on your opinion of steak sauce.
- Fast food: On Tuesday and Thursday Del Taco has cheap deals---3 classic tacos on Tues., 3 chicken soft tacos on Thurs., for $2.09. Add in nachos, a drink, and sales tax and it comes to $5.55.
Looking forward to getting this computer paid off so I can have that $3 a day back in my budget!