My 26 year old son has no place to live....?

I am having anxiety amidst "mother-guilt" because I refuse to let him stay with me (for the umpteenth time). I really don't feel I am helping him be responsible. He hops from job to job and seems to go through "friends" like he does socks. Yet everytime he is in trouble, he calls on me. He spends his money frivolously and comes to me to bail him out. I gave him money to move out on his own in 2002 but he came back in 2003 and just left again in 2005 (I evicted him). I don't want to see him homeless but he literally consumes me when he stays here (i.e., uses my toiletries, won't clean, eats all the food, won't buy any, etc.). I say, let him stand on his own two feet - he'll find a way to survive. What do you say?