How long do I hold on to a found bike?

[oregone]

I just found a relatively nice Trek on the side of the road. I've posted an ad on craigslist in an attempt to return it to its rightful owner. How long do I hold on to it before I give up? The reason I'm asking is because I'm moving soon and don't want to have to move the bike with me. By the way, if you know anyone missing a Trek, let me know!

[Attornatus_Oregonensis]

Post the bike here, on CL, and in the neighborhood where you found it. If no one claims it before you move, donate it to the CCC.