Used to be great, but..

..for some reason it cannot be launched anymore on El Capitan.
And the developer does not respond anymore.

It’s been one of the best apps ever, but for now it is useless.
Seeking for a working alternative, I am giving Paste a chance now.
Looks good so far - even though it is using mainly shortcuts and seems not as structured as unclutter was.

papilli_79 about Unclutter, v2.0.6