I've got about four trillion (and counting!) reusable bags. You really need to get one. Some of them come with little pouches, and other ones, like this one, roll up all nice and neat-like AND have dinosaurs on 'em. Use 'em instead of getting yet another crappy drugstore bag every time you run to the corner for like TWO little items you barely even need a bag for. Sure, you'll feel like a bit of a yuppie, but at least you're not extinct, right? Now roll one up, stick it in your purse, and STOP thinking about yourself so much.