When painting with a roller, don't fill the tray more than one-third full. Also, load the entire roller with paint by rolling slowly down the tray and back, several times.
To prevent air from entering partially used paint cans, store them upside down after placing the top on firmly.
Always store paint in its original container, with the label intact. This will help you properly identify rise color and type of paint when you go to use it again. If key information is concealed by paint drippings, write down the brand, manufacturer’s code, color, gloss level and type of paint on a strip of masking tape and affix it to the side of the can before you put it away.
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.
For a quicker and more efficient paint job, don't overload the paintbrush or roller. If it drips, there's too much paint.
When using a paint pad, apply the paint with long, straight strokes, all in the same direction. Do not pull the pad back over the painted area. Also, be aware that paint pads have a tendency to leave lap marks if you do not feather the paint carefully where one stroke meets another.
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.