@vaporeon_ god I just googled and there really aren't convenience stores in Europe??
And you don't watch movies, so I can't use those as frames of reference...
Lots of snack foods, prepackaged foods, individual foods; some sell hot dogs and other foods they can keep heated up for the entire day. Donuts, coffee. Soda fountains. Also generally stuff like batteries, motor oils. Most convenience stores are also gas stations.