@Shane: Thank you for the update. 
Actually, I wonder whether I am the only guy who regularly forgets to enter flight into his logbook and who can't rember a few days or weeks later when he flew, for how long and where he went to? 
Tim Myers wrote:
Is this my friend Oliver from Michigan?
Yes.
Btw. I am just about to order a Dual XGPS170 GPS / ADS-B receiver. The ability to see weather en-route and particularly winds aloft sold me on it. I am aware that without ADS-B out the traffic picture is not guaranteed to be complete, in busier airspaces, like here in Detroit, it should however work sufficiently well and be a useful tool. Usually, I use flight following, when I am only locally tooling around, I think however that additional help can't hurt.