I found several pair in a tool bag this morning... must have bought them when I bought the sawsall.
I put them in, according to instructions, and fired up my vacuum cleaner - I love it, it's always worked great, but it sounds like a jet engine.
Not today! Still could hear the motor and the high pitch whine, but no where near as without the plugs.
The plugs though, had a hard time getting them all the way in my ear. Applied pressure for the count of 60, but by the time I finished with the vacuum half the plug is outside my ear canal. But, still, they are doing a great job. I tested, like it said in the instructions, and cupped my hand over my ear and sound was the same.
The heater came on and I didn't hear it - felt the heat when I stepped over the grate.
Waiting to see how much of the fridge noise they muffle out. (that's another story. I have a replacement compressor fan/motor/grommets I'm going to attempt to install)
Going to leave the plugs in for a while and see if I can get some control of the tinnitus since that's about all I am hearing now.
Thanks for all the advice and suggestions. Really helped me a lot.