My garage has a workbench installed by the previous owner. Just above the workbench are a light switch and a set of four outlets. They originally looked like this (this is a lazy visual diagram, not a complete wiring diagram).
There are two pairs of duplex outlets; the duplex on the left is a split duplex with the upper outlet controlled by the switch and the lower outlet unswitched. An overhead fluorescent lamp is connected to the switched outlet.
All of these outlets were properly grounded but none of them were GFCI protected (I used a tester to verify they were also not downstream from another GFCI).
I replaced the right duplex with a GFCI, and flipped the left duplex upside down to follow the convention used in other rooms that switched outlets are upside down (I updated the wiring to keep the upper-left outlet as the switched outlet):
I did try connecting the hot side of the bottom-left outlet to the Load side of the GFCI, but of course the GFCI doesn't like that and would immediately trip as soon as I powered on any appliance plugged into one of the three protected outlets.
From what I've read it sounds like it's not practical to have a switched outlet downstream from a GFCI.
What's the best thing to do here? The GFCIs always come with a bunch of stickers for "GFCI protected", "No equipment ground", etc, but they don't come with "grounded but not GFCI protected". In this case, I worry that because the right duplex is a GFCI, an average person might reasonably assume the left side is GFCI protected (if they know about downstream protection). Should I make my own sticker that says "Not GFCI protected"? For the moment, I've just put one of those plastic plug covers into the bottom left outlet because I don't think I'll ever actually need to use it and that way I will remember that it's not protected.
I'm not worried about the fluorescent light not being GFCI protected because it's hanging from the ceiling and there's no risk anyone would ever be touching it while it's powered on.