When it comes to food, we often pay for convenience, when a few simple changes would make life healthier and less expensive.
Spending $6 a day on lunch means spending about $800 a year -- double that if your spouse or partner does the same. Brown-bag it just a day or two a week, and you won't only be eating cheaper, but healthier (and maybe tastier, too!).
Bottled water isn't just bad for the environment; it's also a great way to pay a lot for something you can get for free. Buy a faucet filter and some fun, reusable bottles.
Making your own coffee in the morning, instead of stopping at a chain, will save you tons of money each week. Stashing snacks at work and in the car means never having to hit the vending machines or a drive-through. A little prep time is worth a lot!
Planning your meals for the week based on what's on sale at the grocery store is a solid strategy (as long as you stick to your list). Have a snack before shopping, and go into the store knowing exactly what you need -- this can save you tons of cash at the register. The faster you're in and out, the less money you'll drop on nonessentials.