You should definately try to do some chores or mow some yards... hell, i think i pay the kid next door $15 a week to do mine .. imagine if you had just 10 customers.. youd have a PDA in 2 weeks.
But... hey if youre gonna go the free route, at least come off asking if anyone has any used/beat up ones laying around that they could part with at a reduced price.
just my .02