Lazy yet practical idea

I dislike folding sheets. Correction, I dislike folding fitted sheets. I change our sheets every Monday. Monday is clean sheets day. But, I've been quite lazy. Instead of washing sheets right away, I save them for the following Monday. In essence, I take dirty sheets off, and put clean ones on straight from the washer/dryer. I put the dirty sheets in the hamper and don't wash them until next Monday when I will need them again. Bonus, no folding, warm sheets. I pray that I will always have 2 pairs of sheets to switch.