Save your Fingers!
When using a ruler for model making, like stated in the '70 hacks' info pack, use a metal ruler rather than a plastic one. As suggested by my tutor, invest in a metal safety ruler with a finger guard. It has saved my fingers many times from getting cuts while trying to do quick last minute work (which I know i shouldn't do). The metal safety ruler has a metal guard for your fingers and a rubber grip on the underside to prevent slipping. You can also get them at different lengths, I've seen them at 30 cm, 45 cm and 60 cm. Hope this helps!
Brilliant advice Jemma! Thanks for sharing! 🙂