Do people wash their spinners out after every use i.e if you're using it for a week solid would you wash it at the end of every day or just at the end of the week? I've always done it every day but someone said recently to me they don't see the need to. I do sometimes have the issue of the inside of the spinner being damp if I wash out in the evening and then start again early the next morning which obviously isn't ideal so it would solve this issue if I were to just wash out once finished with it for a while. Thoughts?