Cleaning and preparing the glass print bed

I already experienced that a clean and well prepared print bed can make or break a print. Good preparation leads to good first layers, good adhesion(@110°C) while objects automatically pop off the printbed when it cools down (no banging on printed objects with hammers and breaking glass).

My procedure for printing ABS (for now):

• Clean the glass (while cold) with Acetone and scrape off previous ABS remains (Nail Polish remover will work fine and smells less anoying)
• Clean the glass with regular window cleaner
• Spray 3 layers of extra-ultra-strong hairspray on the cold glass while letting each layer dry. (cut a 20x20cm hole in a shoebox to be able to spray while the glass is mounted on the Prusa frame)
• Re-check Z-axis leveling (I really need to get a automatic leveling thingie)
• Heatbed warmup to 110°C
• Have nice prints!