Repainting a room is no small task. If you're going to go through all the trouble, you don't want to settle for something boring. Adding a cute stripe design is one of the simplest ways to make your walls look snazzy, but it's not quite as easy as it looks. Even if you use painter's tape, if the wall surface is imperfect, the paint can be uneven and "bleed."
Luckily, this blogger found a simple way to make sure your striped walls look perfect (and don't have a bunch of weird, smudgy edges).
You're probably familiar with the look of the bottom half.
The key to stopping that is all in your brushstroke.
Painting inward rather than up the tape line keeps the paint from seeping in underneath.
Your friends will think you hired a professional!
(source DIY Fun Ideas)
If you're nice, you can share the tip with them so they can have their own adorable decor...but we wouldn't blame you if you kept this to yourself. (We all know what a copycat that Cheryl can be, am I right?)