MiniMoon
I can't reach the kitchen window over the sink. DH opens it for me, but to close it I have found a solution. A spaghetti spoon.
I can't reach the lock on my kitchen window, which has to be pushed in while lifting the handle, so I use my knife-sharpening steel.
My most useful kitchen tool is the smallest knife in my block. It is fine enough to tighten tiny screws and remove the back of my watch when replacing the battery. It also holds open the split ring of the cat's ID tag when adding to a new collar, and prises open the battery compartment of his tracker.
I dread losing it, having rescued it from the veg peelings in the compost bin several times!