Get CHEAP

Believe me, I'm in college, I know each dollar is a precious thing sent down from the heavens, and by some luck it landed in your pocket.
So when you spend your money, you want to make sure it's worth it, both for your wallet and for your body.
I've made a nice list of cheap, healthy foods that if you're post-grad, undergrad, living on your own and on a budget, or just trying to slim down your receipt, it should let you breathe -- and live -- a little easier.

Cheapest:
Tuna fish
Oatmeal
Canned Collared Greens or Spinach
Bananas
Green Tea
Cottage Cheese
Low Fat Yogurt
Frozen Fruit (For shakes!)
Carrots
Celery 

Cheaper:
Peanut Butter
Clif/Lara Bars
Whole Wheat Bread
Raspberries
Blueberries
Granola
Frozen Vegetables (no extra sauces!)
Skim Milk
Quinoa
Green/Red Apples
Mustard
Relish
Tomatoes

Worth a Little Extra:
Nuts (Almonds, peanuts, cashews, etc.)
Greek Yogurt
Grapes
Chicken Breast
Fresh Spinach & Iceburg Lettuce
Soy/Almond Milk
Sliced Turkey
Hummus
Eggs

This list is not a "solution" to any weight loss or health problems, but an organization of my own opinion of healthy foods (you can expand your palate of fruits; I only included a few, but you get the idea). Obviously if you're a vegetarian, a vegan, lactose intolerant or have a gluten allergy some of these foods will not apply to you, and I apologize for the limitation.
If you're like me and could spend HOURS grocery shopping because you're comparing different brands, make sure you're paying attention not only to calories but to:

Sugar
Trans fat
Fiber
Protein

As well as taking a look at the ingredients list and making sure you're tolerant of what your food is comprised of.

When in doubt, whole, organic, fresh foods are always your best bet!

- C_F