In Thunderbird, sorting by date with the newest emails at the top means the little arrow on the column header points up. But in Outlook, sorting by date with the newest emails at the top means the little arrow points down.
This vexes me. I never know whether I want the arrow to point up, or down, since I can’t remember which application does which. I always want the newest at the top (apart from when I’m sorting by name or something else for a minute, but then I want it back to normal), but the arrow is completely useless as an indicator, since there’s not enough info to tell which way is which. Anyone have any better suggestions for visual feedback?