Question: I put that painters tape on the edges by the ceiling and cut in next to it (overlapping the tape with the paint somewhat).

A couple of hours later, I pull the tape, and small sections of paint come off with it. How do I avoid this?

Is it sufficient to just take a small brush afterward and touch up the area? It always seems to look crappier.

Answer: 
I find that using a hairdryer to warm the tape helps it to peel away with very little force and no damage
For removing tape without damaging the finish it is stuck to, I've found that if I pull the tape back over itself and run my hand parallel to the surface I get the best results. When removing tape, the natural tendency is to pull it perpendicular to the surface which puts the most stress on the underlying paint.

As already mentioned, most pros don't use tape. This may sound more difficult, but with a little practice it's not hard to master. It's also going to save you time. The Purdy paintbrush company has an excellent set of instructional videos with tips on how to cut in by hand. If you search for ["purdy cutting in"](http://www.google.com/#&q=purdy%20cutting%20in) you should find links to short little videos on the Purdy site as well as on YouTube.

One other tip that I learned from my painter is to caulk the corner between the ceiling and the walls to help get a nice crisp line. Depending on what type of texture is on the wall this can really help.