When buying/getting Instaprogress from green coins, normal coins, or missions from battle arena try to have XP/Coin boost as high as possible (without exceeding your max though, buying 150% in all boosts when there's only 50% to fill up is kind of a waste but if you're after getting every penny outta it go ahead)
Small idea but this has been sugested before by someone else but just adding on more to it is the ability to upgrade auto loot but only 1% more each point put into it, just a thought.
 "Anti-Idle: The Game"){kind=icon}