I took a short road trip this week and was sharply aware how it was a unit of experience that began when I left my home and ended when I returned. I didn't perceive it as 3 days of time but as one self contained unit. A friend just returning from vacation noted the same perception of her cross country trip. I have been aware of this for almost 20 years but this was a good reminder - as soon as I got home the 'trip' seemed to slip into archival mode, along with past trips or even dreams. Did I really go or did I imagine the trip? Apparently it's a "time" management tool whether learned or natural, that offers us useful benefits. Don't have enough time? Well, how about just units of experience?