answer:some ideas > restart > shut everything else down > work with smaller images unless you really need the resolution > Photoshop doesn’t free up memory when you close a file, it only does when you close the whole program > Photoshop works with a huge scratch file stored on your drive and you can configure where it’s stored in the preferences. If you’re storing that on the remote drive you might try to free up the room on your main drive instead, it could very well be faster because of faster access. > Things you copy and paste will stay in memory usually at least until replaced with something else Once Photoshop starts to get wonky it just gets worse so I usually find a good stopping point, save my file, and restart everything ASAP when that happens. Hope it helps.