Here are a couple of deals that you can get tomorrow, April 22.
Caribou Coffee. They are offering a FREE coffee of the day to anyone who brings a reusable drinkware from 5 a.m. to 10 p.m.. Go here for more details.
Starbucks. They are offering FREE brewed coffee (hot or iced) or tea to anyone who brings a reusable mug or tumbler. Don't have one? They'll also have those available at 20% off! Go here for more details.