Electronics retailer Radio Shack, which has been circling the drain for quite a while now, finally did what everyone expected it to do, and declared bankruptcy this week. If you’ve been in the hobby of model railroading for a while, you’ve almost certainly purchased something there that you needed for your railroad—some solder, a spool of wire, Cinch-Jones connectors. How will we survive in a post-Radio Shack retail landscape?