Do you hate painting your ceilings? Try this Mess-Free tutorial on How to Paint Ceilings! There is a tutorial, (which is entertaining and informative!), but I NEED one of these paint stick roller thingies!
Paint straight line at ceiling like pro without tape. Paint ceiling first, wrapping corner. Take ubiquitous back edge and gently score mark. Just use corner as naturally flowing guide. Using brush loaded with paint, just cover line.