I was actually forbidden to take canned goods to a canned food drive for the hungry. Not because it was surrounding a holiday but get this: Because time and resources could be better spent in teaching the downtrodden about jehovah's kingdom
I am now a pretty rabid giver and on a charitable volunteer board that helps women and children in the community.
When we were downtrodden (poor because my mother had abandoned college and became a good JW) after my father left us, do you know who helped us out? Her old Church of Christ Congregation. They just handed her a check that they'd all collected, no strings attached, knowing that she'd denounced them and now held them in contempt--out of pure christian love) It has stayed with me to this day. I went back recently to the small town where they were to repay them with interest and thank them and they were no longer there. That spoke to me at the time of true unconditional christian love more than anything I'd ever heard from the platform.
So, in short, not only do they not have any avenues for charitable giving--they actually discourage their members from doing so (at least when I was growing up in it).
~Brigid