What is the best way to paint vertical lines on a wall?

I am moving soon and I want to paint my walls black with neon green stripes. How can I do this so the lines are straight and not sloppy. The walls are about 10 ft high (being as short as I am this is going to be a task xD)What is the best way to paint vertical lines on a wall?
Yeah.... painters tape is pretty much the answer here.





Here's a useful tip for wide stripes though. Paint the area where the stripe will be first, then put the tape on the wall so the outside edge of the tape is the outside edge of the stripe. Then spray paint a clear finish over the stripe and tape. THEN put on the wall color between the stripes. When you take the tape off, you'll actually have a stripe with 2 tones, which will add a little depth and drama to them. You can make it even more dramatic by using, say, a high gloss spray enamel over flat paint, or visa versa.





Since your wall color will go on over the enamel, it won't even show.





For thin stripes though, paint the wall color on, then put the tape up and paint the stripes.





Oh, and you can use the clear enamel trick on thin stripes too. One of the reasons I like it is that it helps keep paint from running under the tape on walls that aren't very smooth.





It's easier to touch up overspray from the enamel an inch from a line than it is to try to touch up the actual line...





Lots of luck


-SD-What is the best way to paint vertical lines on a wall?
The suggestion about using a laser leveler to get a straight line is a good one. You can also drop a plumb-bob from the ceiling to the floor %26amp; tape off from that. Some come in a roll like a tape measure, but it has chalk in it %26amp; you snap that on the wall to show the line. Once you apply the tape, make sure you press it down really well %26amp; you might even go over it with a coat of clear polyurethene so the paint won't seep underneath the tape.
The tv shows recommend using painter's tape but you have to have walls that are fairly smooth for this to work. The tape can also pull paint off the wall even though it's not supposed to. You can do touch-up with a very small brush after the fact to make it look as straight as possible. Professional painters can do this sort of thing free-hand but most do-it-yourselfers can't. Have fun.
Look for Painter's tape in the paint department at Home Depot, Lowes, etc. It's Blue and comes in various widths depending on how small/large the area is you are working with. Make sure that it's completely contacting the surface that you dont want paint on.
Nobody said to use a long level to draw perpendicular lines first, then apply the tape. Also, you don't have to have the stripes going to the ceiling. You could make wainscot height stripes-30-34';, and solid to the ceiling.
Its called painters tape, check it out. It's really easy to use.