My list of all time ugliest and most soul sucking stores:
1) Michael's.
The pot pourri old lady store with the most clinically depressing lighting known to man.
2) Wal-Mart.
It says everything you need to know when the clientele includes teenage moms and they have condoms at the checkout lines. Also has soul sucking bright white lights.
3) Bed Bath & Beyond.
The hellscape that is BBB is best experienced when you lost your credit card and are desperately trying to find it as the store is closing (As I had the pleasure of doing last Sunday). There's nothing quite like hearing the infomercial for the Miracle Cushion play on repeat nearby while you are having a panic attack. It is a made for TV hoarder's nightmare laid out by the same sadists that designed IKEA. Oh, and the lighting will fry your retinas if you look up.
4) Canadian Tire.
The most confusingly laid out stores where there's always tons of staff but no one who can actually help you to find something when you need it. Plus the insipid Canadian Tire guy.