Single post in Dumb things you did as a newbie

I completely upgraded my Daycare EXP Boost. I didn't really know what it was for, but it was expensive so I thought it was a good thing. I had no idea how annoying it can be to have pokemon randomly levelling up in there and causing level gaps. And all that wasted gold :') It is good for getting bugs to double evolve though! Is this a silver lining?