Thanks for all your support.
Apart from the brief and vague instructions to do Kegels , my doctor gave me NO information on how to live with this problem (pad/diaper options, available cuffs, catheters, sheaths, recommendations, local suppliers, etc.). I was left to discover all this myself. I did get some ideas from the internet, including some info from other prostatectomy survivors.
So as I got some help from ideas gleaned from others, I am offering what little I learned.
It's great that we have forums like this for helping and sharing with others.