J.A.
V.,
I do one of three things with all my "hand me downs";
1. pass them on to friends with boys smaller than my son
2. donate them to a local church (usually by way of a friend)
3. donate them to salvation army, because I know that any profits are going to help families in need and it also give people, who may not otherwise ask or be willing to take charity, a place to go buy the things they need at a price they can afford.
I do know there is also a domestic violence shelter in Temecula that will take donations for women and children, but I do not know the location.
Good luck.