This is my favorite. It's hard to find, so I made a quick sketch. https://drive.google.com/file/d/1hSCB8ZGGH7tlph-NuNRWa317HCV4DJe7/view?usp=sharing https://dr

This is my favorite. It's hard to find, so I made a quick sketch. https://drive.google.com/file/d/1hSCB8ZGGH7tlph-NuNRWa317HCV4DJe7/view?usp=sharing https://drive.google.com/file/d/1hSCB8ZGGH7tlph-NuNRWa317HCV... I turn it so the flat side is horizontal. It expands when you put the screw in and it holds quite a bit. You just push it in by hand. When your done, it will pull out and leave just a small(ish) slot. Like I said, they are hard to find, so I take them when I move and re-use them.