And while some people say a penny cannot buy much, those individuals clearly do not know about Dollar General penny deals. Sure, dollar stores don't always offer the best value for food, but in this instance, it's worth being frugal. Just visit your local Dollar General and get ready to treasure hunt for penny-priced items that can keep you on or under budget. Dollar General penny deals are products that are going to scan for just a single cent. The best day of the week to find one-cent snacks at Dollar General is Tuesday morning, but where you find them can be a bit of a quest.