I have three different rooms that I use wupes - main playroom, livingroom and kitchen. Each family is asked to supply their wipes - I have three kids. I have a pack of wipes in the basement, a pack in the kitchen and a pack in the livingroom. So it works! I never seem to run out - parents just randomly bring them, I rarely have to ask. I find this easier than always carrying wipes up and down the stairs. What I used to do before (when my daycare was smaller and we only used the livingroom) was use child A's wipes, then child B's wipes and then my son's wipes. And then when my son's wipes were almost up, I would ask the parents for more wipes. But then I found that I was using the dck's wipes on the weekends. So, my son's wipes are the one in the livingroom.

I sounds confusing and if you asked me, I couldn't tell you who's was who's but I always seem to have wipes, and I don't seem to ever really need to ask my families for them either. Works out!