So far I've only been for cheap iPhone cases, but I just heard a tip: Someone bought a surveillance cam at Marshall's for $50, and it even has a pan feature, wow!
Marshall's is kind of like a spiffed up dollar store, but has some great items that you might find at Factory Direct under a pile of Made for TV junk. Think of it as upscale dumpster diving in a nice neighbourhood like the Annex. Nobody seems to know about this hidden time-wasting gem, so feel free to walk around with the fear of bumping into people.
It's worth browsing here if you have time to kill, maybe waiting for you movie to start, or restaurant reservation to kick in. The staff seem very chill which is fine for a laid back store like this.