As someone not too long ago pointed out, as we get older we have to get a little more creative in stretching the skin for straight shaving. I saw someone using a little cloth to anchor the stretching point and I have now just read that alum can keep the finger(s) from slipping. I am now using a small cloth but it is unsatisfying and counters the simplicity of the shave for me. It does work but sometimes I have to fool around with it too much to get the right position.
Does anyone have any other creative solutions to stop the slippage when stretching?