Hi guys,
I stupidly didn't mask off my windows when spraying water seal and they were covered in the stuff. Thompsons suggested white spirit and elbow grease but this proved really difficult and time consuming so I gave up and resigned myself to smeary glass (and an angry wife).
Whilst doing some odd jobs this week I saw that WD40 dissolved glue and tar etc so I gave it a go.
It works like magic! just spray it on, rub gently and then wipe off with a clean cloth - job done in seconds.
Thought it might be useful info as i can't be the only idiot out there!
Phil