Just wandering, first of all, if it's possible to leave one of your teleporter pyramids behind and then just teleport back to town at will. I'm too lazy to actually try it myself.
If not however, is it possible to use the pyramids to teleport out of the world the imp sends you into, and hence keep the crystal ball?
And then, you could take all of the golden jugs (from the imp's world) with you when you go to the wasteland (instead of using them), then use them when you're in the wasteland and the one that teleports you will teleport you back to the imp's demented world. (This bit actually happens, I was annoyed and loaded again.)
However, if you still had the crystal ball (I'm not sure if this is possible, but stay with me here) you could then escape that world (I could only escape that world back to the wasteland, using pyramids) and then you could have one pyramid on each side (one in the wasteland, one in, say, Rivertown Market) and use the shops as often as you pleased and stuff. And maybe even go back to the council of seven and see if Janus and Zandalor are still hanging around there.
So, anyone know if any of this is possible? I'm not gonna try right at the moment 'cause I still haven't finished the game, and I'd like to do that before I stuff around heaps.