One last DnD 5e feat for a bit. I like the downtime mechanic, but I’d like to build on it. How about a feat to be quicker at applying it?
Quick Study
You are a very quick learner picking up skills that would take years to master in weeks. You’re nimble fingers make any time you would take to fix gear and build things pass in the blink of an eye. When you use downtime days to do any activity or training, the amount of days and money necessary to complete the task is cut in half.
Thoughts?
Throat Punch Games 
Like it.