I occasionally paint my fingernails, or have them painted. But I never have fingernail polish remover.
I tend to just wear the color until it fades off or leaves tiny little color blotches.
BUT I always have brake fluid! I found this when I was actually just wiping brake fluid off my hands.
It takes color completely off the nails no staining like you have with polish remover, and no excessive scrubbing like before!