By Mariam Khan Now that the pleasant chaos of Christmas has passed you more than likely have some more cleaning to do, including the wall stains left by little hands and residue left behind on walls by decorations. Removing blue tack or stickers from your walls can be a pain, you can easily peel away the paint underneath. However, experts say that with with right tools and preparation, removing stains can be achieved without damaging walls. Removing stains can be a task, often store bought sprays can be toxic and damage surfaces they are used on if not used correctly. However, this cost-effect…