When you're getting ready to upgrade your TH/HQ it'd be nice to, at a glance, know if all your other upgrades are done or if you need to do more. I was thinking that a little blinking beacon or perhaps really faint glow in a window or a dial/gauge could go from red to green or something.
Just a thought. I hate clicking each structure to make sure that they're all upgraded before I start the TH/HQ. I'm gonna post this on BB forums as well. Screw Hay Day!
