Sneaks - it would be good to have such a power!
Once you are in a meeting with the supervisor and you could agree as to the next step, you could pause time, get that thing done and submitted before he/she would change their mind. Along the same lines, I would think a "What-the-f**k to English" translator chip in the brain for such meetings as well ha ha!
Nah ... I would seriously like the superpower of just being able to remind everyone to kick back, put the legs up and on chill! That and the ability to predict the next 100-1 at Chepstow :p