To get the job done right, you need good quality tools. It doesn't make sense that people are willing to spend £50 on 5L of premium paint but decide to go cheap on the applicators. Later, when they see a hair on the wall or lumps of roller lint under the paint, they'll realize the mistake. Investing in good brushes or rollers up front is worth the extra pennies.
It may seem obvious, but you always want to do repair work first so that your walls are smooth, clean, dry and free of loose debris before you begin painting.
DIYers often continue applying a dip of paint until the brush or roller becomes dry. When you overextend each dip, the paint can dry in the brush bristles, and the fabric on rollers can mat down. Be sure to always maintain a smooth line of paint. Once the