Apart from listening to music on my bike rides,
the other thing that keeps it interesting is
combining it with another hobby of mine - geocaching!
What is geocaching? You mean you don't know? :)
Wikipedia is here to the rescue again.
See here
Today I found another at around the turnaround point.
Good fun!

johan_cruyff is my geocaching handle. Yer, I'm a geek! :)