Pileups in the pantry?
When putting groceries or other items away, stock new canned goods or other items behind what might already be on your shelves. As you use up what you need, products shelved the longest will be used first.
Learn to be a fan of shopping lists. To save some time in the store, create your list according to the layout of the supermarket. This way, you can pick-up everything you need without going back and forth between aisles.
Don't forget to check off items on your list as you put them in the cart.