Pret (a manger) is in Reynolds - good for a snack, lunch, treat, coffee/tea etc. They have gift cards. My D is an avid Bart Mart shopper (small convenience store in Bartlett commons) - and you can use maroon dollars there - not sure, though, if you/your relatives can get maroon dollars before school starts (they get attached to their UChi Id - so really easy and no risk of losing).