Doubling uᴉoɔʇᴉq? Shouldn't this be in the gambling section?
Anyway, get a job...
I think one way that could be done to double uᴉoɔʇᴉq is a gambling dude
perhaps that most likely could be done you can double your uᴉoɔʇᴉq in the short term.
This is most sought-after by many people
Yeah gambling is the only way to double your coins in short time as trading and campaigns will take a long time to double it but if can take risk then gambling is the key.