I use H to find the towncentre fast. V to create villis. Q to autoque(Started this yesterday and still needs practicing). E for house, w for wall f for farm, r for armory, x for market s for stable,a for archer range,d for dock,g for granary as these are close to each other.
I use 1 for initial TC, 2 for scout/dock(in the classical i turn this into barracks) ,3 for archer hero, 4 for archers, 5,6 and sometimes 7 for raider groups, 7 for cents.
I use ctrl+hotkey to find barracks if i forget to change the hotkey.
i usually use instant garrison, and i don't know hotkey to repair. So going to search for it now.