I also, like Webbo, have always thought that we should have a fund to aid with disasters and it should be a generous one when people need help. Otherwise, much Foreign Aid goes into brown envelopes and to countries which don't need it.
I don't give to big charities, I give to charities which directly achieve something on the ground. Too much is wasted otherwise. Currently, there is so much need here in UK and locally that I have none to spare. There is real poverty and want in UK. I'd rather that the little I pay in tax did not have part of it sent to, say, India for example.