Instead of winter sports, try geocaching
Want to try out something fun and new? Seek out the geocaching craze, says Lynn Colwell, co-author of the book "Celebrate Green!"
"Geocachers" use GPS devices and clues to discover caches (boxes or cylinders) hidden in parks, in the wilderness or on city streets. The caches contain a log for you to document your find, along with a trinket or two for swapping.
The Seattle-based company Groundspeak helps to manage geocaching hide-and-seek expeditions, and offers a free app to help you find caches.
Geocaching is a frugal way to discover your city inexpensively. "I love discovering places I'd never normally find -- the streets I've never been down and little nooks and crannies in parks," Colwell says.