Doube sided tape.

[RAF96]

I have rolls of various types, carpet tape which is handy for the odd bit of track that needs to be firmly affixed, double sided foam for holding decoders, a roll of double sided sellotape, unfortunately this is anonymous. I also have some other ‘stuff’ on a roll similar to what they fix DVDs to magazines with. I use it to hold wires in place in locos. I have no idea where I got all this stuff from, it just appeared in my box over the years.

[footplate1947]

Now found two which are good as follows the one which WTD recommended Sticks 2 ultra clear tape and one from B&M made by Unibond and both work well.
The lesson I have learned is don't buy the cheap stuff from china as it is rubbish. Least the two I bought were. They would not hold on a postage stamp.

[bulleidboy]

I've just used some to stick rubber draft excluders onto the bottom of my garage doors - and this came out of my model box - not an external tape.