There's a great grocery store in Umbertide with everything from food to wine and beer. Helpful hints:

The COOP hours are posted "between 8:00am and 7:45pm Monday to Saturday, although in the winter it is closed Monday mornings until noon. Sometimes in July and August it is also open on Sunday mornings." So Italian!
The COOP shopping carts require a 1 or 2 euro deposit to guarantee you return the cart (great idea, right?). Simply feed the coin into the top of the cart and and it will release the cart. After shopping, return the cart and the coin will be returned.
Everyone wears gloves when touching fruits and veggies - they are provided near the bags in the produce section.
They also weigh and price veggies in the veggie section, not at the check-out. There are weigh stations throughout the produce section that will print out a tag with the weight and price.
The best bread and meat is behind the deli counter.
They charge for each shopping bag so bring a re-usable bag (most houses at the Borgo have a few already).
Credit cards are accepted (Visa, Mastercard, Amex)

Via Rodolfo Morandi, 19
06019 Umbertide Perugia, Italy