In the early days of LHR training, I did a lot of out and backs, leading to Garmin maps that looked like this:
Then I was told I needed to hydrate every 15 mins. I'm really not into the fuel belt thing, so I stash my gatorade along my route and run in tighter circles, up and down side streets, and generally stick close to the neighborhood, resulting in a Garmin map that looks like this instead:
This week I busted through to a new level, apparently traversing land and water with equal ease, with no detrimental effect on HR or pace:
Next week I may try to defy gravity.