On Wed, 09 Jan 2019 11:33:12 -0500, wrote:

In my new house, just built a couple of months ago, the receptacle in
each room that is controlled by a switch has pin up and the top is
switched, the bottom is not. Makes it easy to find the right one.

That's a system. You'd think by now there would be some universal
ID that you could use on receptacles to mark switched, but I've never
seen any. Just a simple little piece of green tape on the half that
is switched would work, but I never thought about doing it until now.
It would be most useful in a new house, where you're not sure what's
what and have to plug in a lot of stuff. Would be nice if that convention
could be followed by electricians.

I mark the switched side with a red sharpie.

Mine were marked via an adhesive blue dot. First time I saw it, in my
present home I wondered what was up with that. Finally figured it out
:-)