we have given all our non-perishable food and drink items to bell services for years, excepting the times we have found a family just checking in to take the items.
last trip (in may), the bellman said they had sooooo much in the luggage room, that we could just leave it for housekeeping.
i would post on the dis a few days before your departure, asking if anyone wants the stroller (btw, items left go to lost & found. after a while, they are sold to CMs at property control - there are usually a TON of strollers left, so they sell for little).
ask a family at the pool if they would like the pool toys, if not, just leave the toys near a lounge chair (a small "take me" sign would be nice, as i know i would never allow my kids to just assume something was left).