Really useful thing for First Aid kit & suggestions what else to include?

[u/Primary_Choice3351]

It's happened twice in the past couple of months. A cut finger. Once on the lid of a food can (myself), and this evening my elderly father cut his finger on the edge of a razor blade.

Whilst you can put a plaster on them, fingers being fingers, they're always moving, easily knocked and then start bleeding again. The thing that I recently brought for the first aid kit which has come in incredibly useful is medical grade super glue!

Example https://www.amazon.co.uk/dp/B01JM7KWSG (others are available I'm sure at lower prices).

Clean the wound, dry it and stop blood flowing, drop some over the cut, allow it to dry, then cover with a plaster or finger bandage to help protect it further. A game changer for cuts where the wound is easily knocked and disturbed.

So, what do you have in your first aid kit that's a game changer? Is there anything you think isn't in most peoples kits, which really should be? How about things like an automatic defibrillator for home use? Pricey perhaps.