You can reuse the outer cover without washing for 2-3 times a day. Here’s how you can do it. Once the pad is fully wet, remove the liner and pad. Store them in an open pail. Wipe the outer cover using cloth wipes or just airdry it for 5 mins. Attach another fresh prefold, place liner on top. All good to go! You should reuse the outer cover only if baby has not pooped. Wash and reuse if baby has pooped in to it!