It can get a bit crazy, using /tpa all the time. That's why I say that we should be able to create warps, such as survival. Of course donors being able to have extras. Basically /setwarp [name] and /delwarp [name]. Just a basic idea, feel free to comment on your own variation. Another idea I have is to turn on PVP when you switch into survival (in creative), so there can be fun things like snow ball fights, sumotori ;), pvp testing and such...