How about having a garage sale? You could sell all that junk you've grown out of into hard cash? Maybe you could undertake a sponsored walk, diet, run, parachute, swim, bungee jump, - whatever you feel like taking on?
Looking beyond the ridiculous, perhaps we should now consider the sublime. How does getting in to see the Christina Aguilera concert for free grab you? It can be done, and all you need to achieve it is a backstage pass.
"Is it as simple as that?", I hear you query in a disbelieving way.
Genuinely, that really is all you need.