Wax it first and learn about cleaning it. IMO that is the most important thing to keep it in good shape.
Other than that, you can learn how to fix things when they break.
The only other thing I could mention is looking into protective pieces, such as Cliffy protectors.
Other than that, have fun it with it. Mod it if you want, change things to your liking. Thats the fun part, you can create your own little world under glass to your choosing.