cutting in with the freehand method
Of course, as with most things, there are gray areas. Some products are out there that allow you to cut in with a flat sponge tool (as in the image below). We're using a plain old 2" sash brush and it's really working fine. We're enjoying the fact that we aren't plunking down $15 a roll on blue tape or spending a lot of extra time putting it up. It does add some need for extra carefulness when you're doing the actual deed but - at least for our low-contrast cutting in - the freehand method seems to be working just fine.
using a special applicator for cutting in
What method have you employed when painting your walls? Please share any tips or tricks below!