Mercury Retrograde yet again

The planet Mercury likes to go into a backwards motion something like three times a year.  It's doing that starting today until the end of the month. 

Mercury is the planet of communications, electronics, travel, it governs commerce, anything that you need to be skilled at, agility and speed, intellectual energy,  perception, reason, memory, speaking and writing.  Transportation screw ups are high on the list of things to expect will happen, as will computers crashing alot.
Your nerves, arms, hands and fingers are all ruled by Mercury.