Use an edger instead of painter’s tape. Buy a good quality edger (they’re fairly inexpensive) and take your time in the corners so that you don’t spend all the extra time taping off everything.
A 2-inch angled-sash brush can also be used for cutting into corners.-Hold it like a pencil and paint a steady line.
If you take a break while painting, cover rollers in plastic wrap and refrigerate so that you don’t have to clean them every time you stop.
Consider skipping the paint trays and using a five-gallon bucket with a roller screen inside. This saves time on filling and re-filling the bucket.
Use a hammer and nail to poke holes in the rim of the paint can. It allows the paint to drip back inside the can after you pour it out.