2. Pants protector: There are those occasions when something should come between you and that bus stop bench.
3. Trash receptacle: You’d be surprised how many stops don’t have cans.
4. Laundry bag: See here for a recent example. (Related use: as a “wet bag” for cloth diapers. Sorry. TMI?)
6. Shopping bag: Seasoned bus chicks carry running shopping lists (on paper, on mobile devices, or in their heads) and purchase needed items when they’re nearby.
Do note: A single plastic bag cannot be used in all of the previously described scenarios. Several are single-use use cases and require the bag to be thrown away and replaced. If you find yourself replacing your bag often, you should consider carrying more than one.