Besides collecting old bikes, i collect old bike books and repair manuals. Some of the advice is pretty interesting:
In regards to finding a place to stay on a cycling tour - Filling station attendants, grocers, village loafers and small boys on the street can tell you where to find cabin camps. Usually they are glad to give information because that entitles them to ask questions too.
The same book also recommended against derailleurs and exposed gears, since they are exposed to dust and moisture.
Another book recommended against triple chainrings, since they were unnecessary and heavy, and that a standard 10-speed was more than adequate for any riding situation.