Cut the Tape to the size you like. Pants are easy because you can just do a rectangle that will be applied along the hem of the pants.
Step 3: Iron on!
Have your Iron on at cotton high. Press the iron to the reflective tape [shiny or glue side down] for 30 seconds.
Step 4: Done
As soon as you are done with the reflective tape, its all done! I will admit that there are companies out there that will sell you pants with this stuff in the cuffs that are much nicer looking but this serves as a quick and safe way to ride late at night. If you iron the tape to the inside the pant cuff, it will be easy to disguise later.
Step 5: Shoes too!
I also did it on my old vans. It works so well I think. Hopefully this helps some of you late night riders.