My tip? Fold your clean duvet cover, sheet, pillowcases together - everything you need to replace the linens on a bed - and put the bundle into one of the pillowcases. Voila - a neat package in your linen closet, which you can quickly grab when it's time to change your bedding. No rooting around for random pillowcases or trying to figure out which is the king sized sheet and which is for your child's bed ...