A public service announcement that I'm sure some people would be interested in. If you are not from Pennsylvania, you may be confused on how to buy alcohol in the state.
If you want to buy beer, you have two options; a six pack shop or a beer distributor. A six pack shop is generally a bottle shop and sells beer up to 12 packs. You are legally only allowed to buy 192 oz of beer at the six pack shops per visit, so you will need to physically leave the store and come back in if you want to buy more than 16 bottles. If you want cases of beer or kegs, you can purchase those at a beer distributor.
If you want liquor or wine, you need to go to a state owned liquor store. They only sell liquor and wine there and no beer. The local grocery store, Giant Eagle, has started to sell both beer and liquor, but these parts of the store are essentially different stores. So you need to go to the beer portion for 6 packs and pay there, then you can go over to the liquor and wine section to pay for your liquor, and then you can go shopping for groceries in the rest of the store.
Oh, also you can't buy alcohol before 11am on Sundays...