I don't know about everyone else. But, sometimes I get distracted on the internet and end up going down a path I didn't intend and hours later find something really cool I had no idea about before. This is the result of such a diversion. A valve spring removal tool that you hit with a hammer to get the keepers off and then you hit again to put them back on:

https://www.youtube.com/watch?v=HtC7huYT_H8

The thing is so cool!

Amazon has a set of the big and small ones for around $60.00.

https://www.amazon.com/gp/product/B0...KIKX0DER&psc=1

I have wasted untold hours with the little bitty valve spring screw down compressor, a magnet on a stick and a high frustration level to want to try this tool out.