For those of you with iPhones, the 45 Fix is well worth a look, even if it’s not quite the finished article right now.
Essentially, it’s a record shop finder, picking out all record shops in the Indie Record Stores database right now. That means independent, not the music genre. So, for example, if you are in Manchester, you can find Beatin’ Rhythm or Piccadilly Records easily on a map, saving you some shoe leather.
Downside? A lot of secondhand places aren’t in that database. But the app is free and over time, might bulk out a bit. Note that it’s UK-only right now too.