We own a micro right across the street from our house (so I can see, meet and get to know other cachers). Every TB I put out now starts its journey by first "Visiting" that cache even though it won't fit in it and doesn't stay. This way I get a good mileage indicator from home. However, one thing I've noticed with one of our TBs that has been to Australia, New Zealand and Fiji is that every time it crosses the International Date Line it travels thousands of miles all the way around the world even if it only in fact traveled to a cache a mile away. I've asked geocaching.com about this and they admitted to me that that is a glitch that they are working on fixing - Happy Travels