I could have used something like this so many times in my life and saved so many skinned knuckles that I’m surprised I haven’t come across one before.

This is a really clever piece of lo-tech gadgetry called the Finger Wrench, which slips on your finger and is designed to hold fiddly nuts steady in difficult to reach places so that you can screw the damn bolt in.

You know immediately that you could have used this tool hundreds of times in the past. Every time you have to hold a small nut or bolt (it holds either) in an awkward spot, this wrench works marvelously. Finger pressure holds the nut or bolt in the wrench, while the raised, tapered slot prevents it from turning. Made from high-impact ABS, the sleeve adjusts to fit any size of finger.

It costs less than £2 here.-Martin Lynch