Pick from: (I). Stuff your normal cup into a plastic food box, with two resealable bags, to keep fresh food in. Carry some hats with you or wear them underneath your flat hat, if you can take them off at this point. (II). Any small, light cup that would fit in a purse will work fine. Even an ordinary coffee, tea and soda tray works just fine. (III). You can buy cups at walmart or dollar stores. Bring your pet or cat own cell phone. (IV). Use that mug as much as you can. Fast food places like mcdonald's might not be as open but subway usually is fine with it.Choose from options above and answer: What most naturally follows?

How to be green in the city
Bring your own bag to the market, convenience store, hardware store, everywhere.
Get ones reusable bags that fold up easily into a pouch so you can throw it in your purse or backpack and always have one with you.
Bring your own cup.
Answer:
(IV).