I always set up a diaper changing area so I'm not hunting for wipes, dipes, and creamies all over the place when I'm in a hurry.
We leave strollers (yes 2 of them, as close to the door as possible and leave diaper bags in them (restock night before)
Sippy cups go near fridge and coffee maker (if I have a sink in that area otherwise near bathroom sink)
PJ's, special sleeping blankies and loveys go right in pac n play before we head out of room ( I use my own sheets on pac n play so no need for housekeeping to disturb this stuff)
keep swim diapers, sunscreen, hats, pool flipflops, floaties, balls/pool toys, and kids suits all together in a pool type bag under sink area or in one closet
I'm sure it all depends on # of children and age and size of room, etc. but those are our basics