Please choose the correct ending to complete the given sentence: Youth: [header] How to make your school supplies last [title] Purchase a large enough backpack. [step] Backpacks are one of the most expensive school supplies you'll need. As a result, purchase a backpack that has plenty of room and that you can grow into.

Ending1: You don't want small things cluttering a large one. [substeps] Choose a backpack that you can carry with you everywhere without weighing down or causing excessive movement on your classroom trips. Ending2: You can get your backpack at the grocery store, or you can do this at home. [substeps] In addition to shopping for plenty of pens and pencils, you'll need some handheld writing utensils, highlighter, and a pad of pencils. Ending3: If you buy a small backpack, you'll likely have to upgrade to a larger one in the near future. [substeps] Pick a backpack that appeals to you, but is neutral enough so it won't go out of style. Ending4: Also ensure that the backpack has at least 8 holes, to allow air to come in without sacrificing the weight or quality of your supplies. [substeps] Backpacks are most often sold at school stores and hardware stores.

Answer format: ending1/ending2/ending3/ending4