I'm just a novice machinist, but I wanted to share my most useful machine shop innovation so far. I give you the remote controlled shop vac!
Seriously, it's just a $20 RF remote control outlet (you can find them for $10) with the control taped to the end of the vacuum hose. I use it constantly and it saves a lot of running back and forth to the vacuum on the wall, which is tucked back between the milling machine and lathe and is hard to get to. Ridiculously useful for 30 seconds of installation work.
Seriously, it's just a $20 RF remote control outlet (you can find them for $10) with the control taped to the end of the vacuum hose. I use it constantly and it saves a lot of running back and forth to the vacuum on the wall, which is tucked back between the milling machine and lathe and is hard to get to. Ridiculously useful for 30 seconds of installation work.