One thing it shows is how difficult it is to explain what we do in the corpus-based study of language. It should not be about whether I like the latest word that has been included in the Oxford English Dictionary, as I've been asked before!!
If you use Google Reader to read blogs, have a look at the trends section and it'll tell you what time of day and what day of the week you read blog posts. Not surprisingly, the vast majority of blogs I read on a Sunday evening between 4pm and 11pm!!
If you're used to alt-tab on Windows, then you can use cmd-tab on MacOSX to switch between applications. Note that Windows switches between all open windows for each application, whereas the Mac only switches between applications. If you wish to switch between windows within one application then you need cmd-backquote (cmd-`) although I've found that this doesn't work in all apps.