Yeah. AFK guthans, I just login every 6 hour on the account (that's the maximum amount of time you can be logged on), so if you're on vacation, can't play or lazy to start the NMZ with guthans I can do it 4 times a day for 1m/day.
Basically you pay me 1,5 usd/day ~~ to gain around 1330k xp/day