As those of you who have made your own transcranial light device know only too well, the back of 12V DC LED strips comes with glue on the back, covered by a white peel-off tape.
You can see in the Cossack photo on the left that the white tape has been left on the LED strip.
If you are planning to re-use 12V DC LED strip then you will find that the glue on the back of the LED strip can become quite a pest.
Michael has discovered a very neat way of removing the glue – use talcum powder. Sprinkle talc over the glue-covered back of the LED strip and gently rub it in. The glue will have met its match and will be much easier to use.