@skematicaDon't even think about defragging. This extract from http://www.macworld.co.uk/how-to/mac/how-defrag-speed-up-mac-os-x-2016-3600241/ explains why.
DO NOT defrag a Mac's SSD.
If you're using a newer Mac that comes with an SSD (Solid State Drive), there's no point in wasting your time defragging as they already have a built in maintenance process called TRIM. In fact, it's actually dangerous to attempt to defrag a SSD, which can reduce its lifespan.

In any case, SSDs operate in a different way to a traditional HDD, allowing quicker access with fewer issues making them the preferred option for modern systems.

@skematica Cloning around

An Irishman was once asked by a tourist who'd observed the "pace" of life in Ireland if they had a concept like mañana.
He replied, "We do have something similar, but ours lacks the same degree of urgency."

// @kdfrawg

@kdfrawg The US Navy Communications Base Harold E Holt on Northwest Cape in Western Australia iis a VLF transmission station for US & Australian Navy submarines & ships. They transmit on 19.8 Hz so they can't use fluorescent lighting. If installed it would spontaneously start up when transmitting.

//

If I were to walk 500 miles and walk 500 more I'd be the man to die from cardiac arrest right at your door.

Yes, kitteh, it's nice to see you. Now bugger of and dry yourself somewhere other than on me. Wet cat fur has a certain unpleasant pong to it.

@kdfrawg What surprised me was it was only three times the price of fluoro tube. Cheaper than Amazon, too.

Just replaced a 36 watt fluorescent tube with a 19 watt LED fitting of the same size. It's probable that only the fluoro tube's starter was on the fritz but now there's not a hint of flicker, just instant illumination. There's a safety thingie that replaces the starter.

YOU'VE BEEN DOING IT WRONG!!

I see. As I don't have Dropbox Pro, any suggestions on my part are purely speculative. According to their help section you should see something like this:
2016-10-16 at 06.44.jpg