Hi Heirloom Bob,
This video is from 2013 but it is still relevant to your travel workflow: https://www.youtube.com/watch?v=My10kpBxeB0
Regarding both file types in one folder you may find that using filters is extremely effective. In the filter bar at the top of the thumbnail grid preview you can select Text | Any Searchable Field | .jpg
Once you have your sorted jpgs you can select all, then create a subfolder for .jpgs and drag them into the folder.
If the option "Treat JPEG files next to RAW files as separate files" is not checked LrC imports the Raw+Jpeg as a "pair", with only the Raw file being available to edit. It will not put the jpgs in a subfolder. Hope that helps.
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