Drinks
How much are you willing to pay for a liter of soda? You can get it for a buck at the dollar store, but you can actually get two liters for $1 at a local grocery store. If you want even more savings, you should buy them in bulk at a local store!
Pet Food
We do not recommend experimenting by buying pet food at the dollar store. After all, you might just put the health of your pet in danger! It is not a good idea to feed them knock off food. On top of that, they tend to be cheaper if you go to national chains since they offer a lot of discounts. Target sells a case of 24 cans for $12, while they cost 50 cents more at the dollar store.