re-use old live USB for new LL iso?

[Moltke]

Dealing with the 2 worst offenders, a usb stick and an SD card - I didn't see them in File Manager (and I chose show hidden files..) but I went on to gparted anyway...

thanks for the mention of the drop menu in dear gparted, I hadn't seen that, they were there ok, one at a time, and now are both clean fat32!

Success!

One curious thing - in file manager>devices I see they show the full 16gb and 4gb - usually they'd be a bit less than the "nominal" capacity, should there be another small partition for some function?

Anyway, thanks to all of you for sticking with me, and making me stick with it. Life on earth just got a little less expensive, I'll celebrate with a trip around the sun.  8)

Glad you solved it!