#1
OK, So I had some sticker residdue from a very stubborn sticker on my guitar.

I tried loads of solutions, but one very inexpensive product saved the day for me

NAIL VARNISH REMOVER

My dad recommended it and voila! I applied very little pressure and with a gentle swipe it came straight off
Cort M800 - £320
Cort MR780FX - £220
#2
wouldnt that like damage the seal coat of the guitar finish?
Gear:
Jackson DK2 Trans Black

Peavey 6505
Marshall 1960AV
#3
i use Eucalyptus(spelling?) oil, and other people recomend Lemon oil i think. i don't know if nail polish remover would damge the guitar or not...