Best tool for heating shrink tubing?

[gutpile]

I run my soldering iron as close to the tubing up and down - that works without any tools and you can do it in tight spaces without heating everything else too.

This is what I have always done.... I didn't even know there were other tools to do this (I don't smoke and I don't have a lighter lying around and the thought didn't even cross my mind!!!)

[BrianH]

I do both the lighter and soldering iron. If the iron's tip is clean, I'll even just run it up and down the tubing lightly touching it.