Thanks again for all the help and suggestions. My preferred choice of a place walkable from a blue line CTA station was based on arriving at ORD, after a long flight, and seeking a nearby (cheapish) hotel. Next few days, needing an onward CTA link to downtown for Chicago sightseeing, etc.
I like quirky motels, etc, so the Cyndi Lyn looked interesting... (Not too sure about their option of renting rooms for 8 hours though?)
I do like Oak Park, I have visited the area before, to see the Frank Lloyd Wright buildings.
I am not overly concerned about covid issues, but as with all of life, one needs to weigh up perceived risks. I expect I will be using the HI Hostels again, but noticed that some out of town motels offer a room of one's own for similar prices to Chicago Hostel shared rooms. Just a question of identifying which bargain basement motels have the easiest public transport connections.
Although I have stayed at Michigan Mom's suggested Clinton Holiday Inn previously, the see-saw of "foreign exchange" has swung away from favouring Brit's and we now get a much poorer exchange rate than before, so it emphasises my need for budget travel, as regular users of AU will know of me!
Cheers Jim, it was a great visit for me to travel by QM2, spend 10 weeks stateside, be shown around by "greatcats", and meet up will you all in Emeryville for the Gathering!