There aren't a lot of places to get good oysters in Arlington. And even when you can find them, you'll probably pay a pretty hefty price for them.
However, if you want cheap oysters, shrimp, clams, mussels or even crab legs, you can get them for unbelievable prices every Tuesday night at Ragtime.
The special is on from 4 p.m. to close, and includes raw bar (and steamed) specials for $3.49 and $7.00 for snow crab clusters. Make it a meal by adding a side of their waffle fries or some macaroni and cheese.
Tip: make sure you get there early since they can run out of the good stuff. Also, the crab clusters were underwhelming but it's important to remember they are only $7!