Need to take a step back? Sal’s Pizza is taking us back in time this Saturday by cutting down the cost of their pies. To celebrate 20 years of business, Sal’s is selling their 19 inch cheese pizzas (that currently cost $9.99) for $5.55, the price of their pies when the eatery first opened. If you’ve ever noshed at Sal’s, you know how large their slices are - one slice is the equivalent to two or three “normal sized” pieces - so $5.55 is one deal this recession needs. Plus, a portion of the proceeds from Saturday’s festivities are donated to United Way. 30 local eateries are offering the discount (including Nashua, Merrimack, and Milford), but only a select few are hosting day-long activities such as face painting and children’s games. Some of those locations include Salem, Derry, Concord, and Chelmsford, Mass. For a full list of participating Sal’s, click here.