Use your shears to cut a piece of aluminum foil a few times. The number of times is up to you, 3 or 4 should suffice. It is equivalent to striking a knife blade against a sharpening steel.
These pinking shears produce a different looking edge, but in effect, they achieve the same thing. Just buy the shears that produce the edge you find the most desirable.
Any type of meditation, whether it be guided or on your own, can help you become more aware of what's happening in your brain in real time. You can also...