3. Menstrual Cups

The Diva Cup, Mooncup, and the Keeper are menstrual cups, made from natural gum rubber or medical-grade silicon, that you wear internally. (This writer is a happy Keeper user.) Although you have to pony up $35 or so, these babies are said to last for 10 years, which will rake you $800 in savings, according to GladRags. The best part: You'll never have to worry about stocking up supplies or finding a discrete way to dispose of used pads or tampons, which really comes in handy when you're staying with your in-laws over the holidays and Aunt Flo comes calling. Plus, you'll no longer feel like you're wearing a diaper-cramps and mood swings are enough, thankyouverymuch.

Difficulty level: Easy