Sales tend to happen in six-week batches, and each month, stores tend to organize their major sales because of the season.
In May, watch for the best deals on these items at your favorite stores:
Hamburger and hot dog buns
Condiments (ketchup, mustard, barbecue sauce, relish)
Party supplies (disposable plates, cups, napkins and utensils)
Grill supplies (charcoal, lighter fluid)