In addition to the occasional junk food, I buy this stuff fairly often:

Olive oil (the Spanish extra virgin is good/cheap).
The generic balsamic is good enough for daily use.
Almond/flax seed butter.
Almond meal, great addition to breads/muffins.
Greek yogurt, the plain 16oz 2% variety is a good deal.
Nuts, although our local co-op has expanded their bulk section recently and I need to re-price per lb.
Either the dark chocolate lovers' bars (72%?) or the little three-pack of dark chocolate bars live in my desk at work for the occasional chocolate fix.
Lara bars and Kind bars (work snacks/emergency lunch) are cheaper there than elsewhere. I sometimes buy the trail mixes for airplane or other travel food too.
The smoked trout/sardines make good salad additions and are cheaper than grocery canned fish.
The veggie potstickers (Gyoza? clear bag with blue/black label) are fairly healthy and fill my 'I need dumplings' fix occasionally.
They have a chicken chili that's pretty tasty and good for occasional 'I don't feel like cooking' dinners.

And you can get a pretty bouquet for $4

I REALLY miss the reasonable/cheap wine and am tempted to make a drive to the NJ store that has wine one of these days....2 buck chuck isn't great, but there is a ton of decent ~$5-6 wine that is way better than what the state wine stores in PA sell for similar prices.