This last weekend I accidentally did an entire shoot in JPEG. Fortunately the images are for a clothing brand that only wanted to use them for posting on the internet and not for print, and I made sure by habit to get the exposure/lighting/whitebalance right at the moment of exposure, but my heart sank hard when I got home to put them on my computer and realized there were no RAW images. I'm now dealing with banding in some of the images which is making editing take a bit longer. Lesson learned; I will ALWAYS check to make sure the camera is in the right setting. This time we rented a camera and I forgot to check. Never again...
yeah, i hear ya. flipping back and forth i have forgotten. There are so many settings it seems near impossible to remember where you left them next time you shoot. suppose if you just leave everything the same or factory default or whatever it wouldn't be such a problem but those of us that do a lot of settings playing.....
picked up the camera last night and was kind of like "wtf is wrong with this thing" then remembered i left the focus in 3d tracking.

Looking through the images notice something is off. oh yeah, i had changed it to mid size on the jpegs. huh... switch to user preset and snap hdr, huh? oh yeah i had changed it to heavy hdr before i need to put that back... notice the iso is at 4k, forgot to reset that limit need to change that back. shot through twenty last week all underexposed because i didn't notice my exposure was -1 at first.
don't know how people every keep track.