To make the contents behind a glass door cabinet really stand out there is a need for light. LED lighting strips with a wireless remote control can be installed rather quickly, but there is a need for soldering.
(2) LED light strip with power adapter
Remote control and receiver
Wire wrap wire
Misc: velcro, heat shrink tubing
Peel the backing from the light strip and carefully stick it to the inside of the cabinet door. The corners cannot be too sharp, so allow them to bulge a bit. If you don't need the full 16 feet in a strip, you can trim the lights at a cut mark (every three lights apart--roughly three inch intervals).
Because my cabinet has two doors, I had to install two light strips. Take the remote receiver and locate the end that plugs into the light strip. Cut that plug off and (using wire wrap wire) solder two wires (positive and negative) for the left door and two more wires (in parallel with the first set) to the right door. Cover the connection with heat shrink tubing.
I used velcro under the cabinet to hold the wire up out of view (yes, if you poke your head under the cabinet you can see the wires--but they are hidden unless you spend a lot of time on the floor looking up).
You can use clear package tape to secure the wire near the hinge. Leave enough slack so that the wires will not easily break at this point.
Plug the power supply (wall wart) into a nearby plug and hide the wires using velcro (as in a previous step). The remote control can be used to turn the lights on, off or set them at various levels of brightness. They can even flash in various patterns (though I'm not sure why anyone would want that).