When painting, keep a damp rag handy to clean up as you go. It's much easier to clean paint that is still wet.
If you find bubbles or specks of some kind under new wallpaper, first cut an X pattern over the defect. If the problem is a speck, remove it with a tweezers or a utility knife. Then work seam adhesive into the cavity, squeeze out the excess, and seal the opening. For air bubbles you also can use a paste-injecting syringe found in paint and wallpaper departments.
When starring out, pre-dampen your brushes slightly before dipping into the paint. Slightly damp brushes apply paint more evenly. When working with latex paints, moisten with water: when applying oil-based paints, first dip them into paint thinner, then pat them with paper towels to remove excess thinner.
Paint walls from the top down. If you are using a roller, start by making a large "V" or "W" (3'x3'). Then fill in between the gaps, blending into your initial stokes. Always work from the unpainted into the painted area.
When painting from a paint can, give it a half turn periodically throughout the job. Dipping the brush into the can alternately on one side of the can and then the other automatically keeps the contents stirred at the surface and prevents a surface film from forming. Also occasionally sweep the tip of the brush back and forth through the paint, especially with a fast-drying latex.
When removing wall paper borders, use a hair dryer to loosen the glue.
Most of today’s wallcoverings are especially easy to hang because they’re pre-pasted. If the box indicating whether a wallcovering is pre-pasted isn’t marked, be sure you get the right adhesive for hanging.
Get the most out of your paint roller by cleaning and re-using it. After washing, hang the roller on a rope or dowel to dry, don't stand the roller on its end or lay it on it's nap. Dry thoroughly before storing in dust-free cabinets or boxes.
Engine grime can be difficult to wash off of your hands. If you don't have a hand cleaner handy, your kitchen cupboard probably contains a solution. Reach for either a vegetable or olive cooking oil and spread a dab over your hands. Rub your hands together, then wipe off with a paper towel. Cooking oils will also help remove oil-based paint from hands and arms.
Remove wallpaper quickly with equal parts vinegar and water. For tougher jobs, increase vinegar.