I first clean the inside very throughly with rubbing alchohol to get rid of the antiaging powder, otherwise the tape just wont' stick. You can see the crud that comes off in the photo. I also do this to the rubber lining before I glue the tires on to make sure it makes a good bond to the plastic rim. In my case, I also take my dremel and rough up the plastic rim to make sure the CA glue has some extra "grip" to the surface.

I then use straping time and slowly go around each wheel and do a 1" overlap. Sometimes the rubber still has to much rubber "residue" and it wont' stick very well the first time. I usually have to take off the first tape job and then the second one sticks on much better. Softer tire compound wont' make the tape stick as as well as harder rubber compound, it also depends on what type of tape your using. Some guys use duct taper, others have used Gorilla tape. And no, you'll NEVER get the tape perfectly even and straight, just not gonna happen on a ovalong and curved surface :P

I also highly suggest using wider tape as the more wraps you do with smaller tape, the more likely it will come off.