Many of us swap buffs with friends at regular intervals. With the multitude of buffs now available it can be confusing how much time is left remaining on a friends buff - especially if they aren't online to ask.
I propose that a little tooltip appears when hovering over a friends building (say with a 1 or 2 second delay) that shows how much time is left before the buff expires.
I would find this useful and if you would as well then please endorse this post by replying with +1.