Step 1: U Lock

Insert a u-lock through your bike rack so the open end of the lock is above the rack and the closed end goes below but hits a leg of the rack or some part of the rack that stops it from going all the way through.  This only works on some racks.  Attaching a plank of wood across the rack can also work if you don't have a u-lock.  
very nice . I like the use of the ulock through the handle .
I&acute;ve make a mix between your idea and some others from here, to get a CYCLOCASE, using a Notebook case and elastic strips. I put some pictures in<a href="http://picasaweb.google.com/contato.rl/CYCLOCASE#"> here</a>&nbsp; to help other commuters to do your own cyclo-briefcase!

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More by biciconex.com:Bicycle Parking Brake. Backpack on a Bike Bike Briefcase 
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