You are responsible for keeping the totes in the same condition in which you received them. You are not expected to clean the totes before returning them. No animals are allowed in the totes and totes are to be kept indoors only. Excessive amount of dirt and fur will incur a cleaning fee of $2 per tote, charged to your credit card on file. As long as you return them to us free of items and without dirt or pet dander, you are golden!