When a large construction contract is completed, it's not uncommon for things left behind by the various contractors to be thrown in to a skip, including the site office stationary cupboard. I raided such a cupboard on a project I worked on a few years ago before it disappeared in to the 40 yard abyss.
I scored a box of quality self adhesive tape, it didn't have any branding on it and I used the last roll some months ago. Since, I've been trying to find out what kind of tape it was so I could buy some more.
The best way I could describe it; it's gaffer's tape like, but without the fibre/fabric component.
Like gaffer's tape, it has a surface that's easily written on and the adhesive doesn't leave a sticky residue, unlike regular duct tape which leaves a horrible mess. But like both gaffer's tape and duct tape, it's quite strong but yet easy to tear.
Any ideas?