Rimi

It may take you a while to notice this on your own, so we'll point it out to you: right by Town Hall, to the right of the Helios/RingBar complex, is the easiest, most central place to buy groceries. Head down the stairs below the Rimi sign and you're likely to find everything you need from bins of dried fruit to Lithuanian baked goods to 2-litre beers in this modest-sized supermarket. Unfortunately it can get pretty busy and backed up with long queues. Also on Architektu 19 and Antakalnio 55/1. Open 08:00 to 22:00.