I basically use it as a type of diary. Sometimes the use is just remembering what I did on a particular day for nostalgia purposes, other times it's practical.

I basically use it as a type of diary. Sometimes the use is just remembering what I did on a particular day for nostalgia purposes, other times it's practical. Couldn't remember when exactly I bought something (but it was a shop I don't go to often) so had a look on my timeline and found the date and claimed on a warranty. It also gives you data you can look at when analysing your life - e.g. how often I go to a friends, how long I spend walking in a week, how fast particular routes are to work, etc. When I used to fill in timesheets it was an easy record of what time I got to work each day. There's a fairly basic nerdy pleasure from having these facts available. Yes, I could collect this information manually and keep these records myself but that is quite a lot of work which I'd prefer spend doing other things. I've also used it to piece together the previous night after getting blackout drunk in a foreign city.