I have had mixed luck with TB and GeoCoins. I now have had two GeoCoins since leaving ME that I cannot find. They might be in my car stranded in ME (see post largest TB ever here) or within all my stuff that was moved for me while I was at the funeral in TX. I did post notes to both of the owners letting them know what was up.
My biggest problem is with cache owners that report my GeoCoins as "location unknown" and don't even bother to communicate with the owner. One even got peaved with me for asking for more information when what he told me did not match with any of the log entries.
Twice though with my Army GeoCoin I have gotten messages say my child pick this up and did not realize what it was. Both time the GeoCoin was placed into another cache without being properly logged. Made for some work for me to straighten out the logs, but I wasglad for the email and for the GeoCoins return.
I haved moved many TB and GeoCoins all over the northeast and south central US and have had great fun doig it.
The one other problem I have had is with TB that have no information attached to them. Then when I get to a location where I can get internet access and log them only to find out I have carried them many, if not hundreds of, miles in the wronge direction. One in VA I picked up near DC on my way home from VA to OH. When I got home I found out it was trying to get to the White House, Oooops. It had started in Iowa and it was more than halfway back home.
One last frustration is when I notice that cachers have been visiting a cache but continue to leave a travel bug there. Even if they don't want to take it with them a discovery note would be nice so that I at least know that it is in fact still there.
Yesturday is history, tomorrow is mystery, today is a gift.