Our house is about 35 years old. The contact paper in the cabinets is about that old as well. We are trying to remove the contact paper so we can paint the inside. This is proving to kick our butts. We have tried using water to soften the paper. Nope. We tried using DIF...nope. We are now using scrapers and sandpaper to remove the contact paper. Can we paint directly over the contact paper? should we remove as much of the contact paper as we can? or can we just scrap this scraping and paint right over the contact paper? Thanks so much for any info and advice.