Start a new OSRS account, get it maxed, do some end game bossing, stake the profits, win it all and become mega rich, then hire a hundred peons to do your bidding. Take over worlds and such.
That will give you something to do for the next few years.
I don't want to be that guy, but I second this opinion just because RS3 has become a game which the player base has been over taken
by an older version of the game which is way more community driven.