This may seem like a strange item to need, but it is very important. We use a lot of hand-washing soap, because the carers wash their hands a lot. We wash our hands before and after handling sick animals, before and after handling food for the animals, after cleaning dog poop or kitty litter, and after handling anything dirty and/or greasy. When giving multiple animals their medicines, we need to wash our hands thoroughly between animals. This is why any animal shelter will go through an inordinate amount of hand-washing soap. We buy it in bulk but are in near-perpetual danger of running out.