ahem,
it is not an “obscure” location, the location is in your USER directory
ie, from your user directory you can see the following: my documents, my pictures, my whatever, workspace, etc, and triplea
secondly, you CAN actually set things up so that double clicking on a savegame or a map xml will open it directly into triplea
to do that, you just have to change the “default program to open this file” setting, which you can usually do by right clicking on the file
and/or you can make a series of custom shortcut that auto-load different maps or w/e, just use the command “triplea.game=<gamelocationhere>” command line argument inside the shortcut</gamelocationhere>