I'm open to discussion, but now that I've existed for a substantial period of time, I've found that my most prevailing memories are the ones hard won (e.g. when I almost had to sleep on the streets or ran out of money in a foreign country or got evicted from my flat). Whereas days sat on my couch watching telly, or in the pub having fun with friends, or another routine day in the gym are all blurred memories with no definition and no real sense of elapsed time.