I always infuriate Mrs Growster by cutting up a half-gallon milk bottle - taking just a three-inch slice around the waist, which then gives me a foot long strip of very resilient plastic...
She then gets even crosser as I carefully cut the stuff into three inch x halfinch pieces then make a point on one end of each piece.
She is then incandescent with rage as I mutter something about saving all this money for about twenty-five labels...
She then throws the Sharpie at me, which I can catch quite easily as I played full-back for many years!
On a good day, I can also get a few more labels from the off-cuts, but have to remember to keep my hand on the scissors all the time, as the fury sometimes bubbles over into a murderous threat...
(The labels last for years, and can be seen on most sections of The Patch and also the garden at home)!