Plain and simple page that shows just today's date and day-of-week.
I could not find one that was as plain as this; others have ads, weather, other links and whatnot.
I use it as the first tab in my morning-chores group of tabs. This way it is the first tab I see in the morning.
So many browsers offer a blank tab with all this kind of information on it already. When you open the browser or open a new tab, you see that information anyway.
If you search for "today's date" [1] you'd see that there are many webpages trying to serve this particular need. So I guess this is just one more in the noise. Besides, this serves my needs accurately, and hopefully it might help someone else as well.