Do you ever feel guilty when....

you turn down another charity that rings you on the phone? I try and do my bit, with cancer foundations, breast cancer, a couple of childrens charites, Red Cross and the Salvation Army when they come knocking on the door but I can't support them all...and I basically hate it when you are made to feel like you don't care when you say NO...
As far as I'm concerned I believe that Charity does begin at home....and if I have to choose between feeding my kids or someone elses...I have to say mine....
I'm lucky in that respect...DH has a pretty good job and money isn't always tight and I can contribute to other charities...but like any other family some months are tighter than others...where all the bills seem to come in at once and the pay check which looked so healthy the previous month just doesn't seem to stretch as far this one....and I don't have a spare $5 let alone $20 which seems to be the minimum donation that some charities seem to want these days(I think it is all to do with charges/account fees etc).....personally I think 10 families contributing $5 each rather than 2 contributing $20 is better...hey do the math....$50 vs $40 ...