I have one already. But I wanna store exp or get other functunality out of it like I had hoped with liquid exp. Im sitting on 92 levels. With a probably wasted 90 more in liquid exp medallions. I wanna use it. Or save it. =/
Brains in jars from Thaumcraft can store XP orbs they pick up off the ground.
XP turtles can also absorb orbs and automatically enchant stuff. Check out the ComputerCraft forums to make turtles less intimidating.
Nothing really good to do with your 97 levels though.