I barely use mine, but I find it immensely useful when I do.

My apartment building's management would only give me one key fob so I cloned it into my flipper for a second key. I've cloned hotel key cards too.

The infrared remote is good to control things like TVs & air conditioners in a pinch - like when you misplaced the remote. Or when the TV belongs to someone else...

Same here. Rare use, but when I do it’s generally for a fairly major issue that would otherwise only be solved by some expensive specialty tool.

Same. Spent one whole day tinkering with it and now it's sitting at my desk like a paperweight...