I use a $5 cable (probably overpriced but they are hard to find and $5 so whatever) and a $2 padlock. Looped the cable to the frame right where the st and tt meet and locked up inside the Brooks. The padlock is pretty much out of site, and in a pleasant surprise turned out to be absolutely silent. I taped the cable to the seat post with gaffer's tape. Black tape on black post so its discreet. A lot more elegant then those chain tube contraptions and probably equally in/effective. And not nearly as elegant as no lock on the seat at all...

How much work will they do for a saddle anyway? mostly for saddles it seems like crackheads going for the quick releases.. Any stories of nice track drops or other handlebars getting snatched? I was already bike paranoid before reading all these theft stories on this board...