Sorry to revisit this conversation, but do you use fabric softener? I don't because it makes my skin flake off, and I was thinking maybe this is the cause of my static woes.
Anyway, I am trialing a new tactic.
It's quite laborious but after every layer of synthetic clothing I put on, I put some body lotion on my hands and run them lightly over the garment. I wouldn't recommend doing it with anything expensive but it doesn't seem to stain, it just sinks into my clothes and seems to stop the static. It smells much nicer than hairspray anyway.