Christmas plea: Give something... anything. Whatever! Just give. My family has given a lot since two weeks and we still didn't stop giving. Clothes, toys, money, tools, anything used or new. See things this way: You have extra space to buy new stuff, or to organize things and you are still helping others with stuff that didn't mean nothing to you...
Giving tip: If you have some points or credits on those brand fidelity cards, exchange it for something useful to others. I used my "Farmácias Portuguesas" points card to give some new baby milk and other baby material to the teenage mother association. Is that simple, and don't cost you a penny! ;-).