If you have a spare room that you can rent to travelers and would like to pay only $10-20 per night when you go on vacation, consider joining a bed and breakfast club.
The Evergreen Club is a "practical resource for travelers over 50 who enjoy people-to-people contacts."
There are over 2,500 guest rooms in the United States and Canada that are part of the club. Members retrieve accommodation information online and may contact the hosts by email.
Breakfast and an hour or so of the host's time helps travelers learn about unique sites in the area.
Dues are fully refunded if you aren't entirely satisfied.