In celebration of Halloween, Harvard Square businesses are participating in Harvard Scare, a set of local deals and events taking place this weekend. Here are some of the sweetest steals.

Boloco will be selling two original size burritos for $9 after 7 p.m. from Friday until Tuesday.

If the deal really strikes your fancy, you can recycle the obscene number of foil wraps you acquire by turning them into a costume. (The Tin Man, anyone?)

Then, take that aluminum-chic costume on over to Uno Chicago Grill or The Upper Crust on Sunday to participate in the establishments’ costume contests. The victor takes home a $50 gift card from either establishment.

Or, add some spook to your study break with special Halloween inspired flavors at toppings at BerryLine, such as the “Brain Matter” flavor. Halloween may be scary, but midterms are horrifying.