Giving to the Poor

Homeless...Will work for food...Need Help...

What do you do when you see someone holding a sign like that? It is hard because Christ commands us to give to the poor but at the same time you do not want to be fueling someone's drug addiction (not that every one asking for help is a drug addict). I have a a close family member that has struggled with drugs and from experience they would much rather have a fix than food. From being so close to someone with a problem like this I have learned a couple things: first, they are human beings that our God created, second, they more than likely are embarrassed by their lack of self government and feel guilty a lot of the time, and third, think how hard it is for you and I to stop some "little" sin or habit let a lone something as gripping as cocaine. Clay and I really feel pity when we see someone in the Walmart parking lot holding a sign. I can not imagine being desperate enough to stand in front of people begging. We give to them when we can but we really don't like giving them cash. So what is our solution? I'm not sure when we thought of this or where we got the idea but, we buy little $5 gift cards from McDonald's and keep them in our car. We feel better about this.
Well, that is what we have decided to start with... what are your ideas? Any other suggestions for times like this when there is a need but, you are not sure what to do?