I like knots, so I thought I would share my list.
Trucker's hitch for tying down with maximum tension, kayaks, firewood, etc.
Adjustable grip hitch is my newest addition thanks to an earlier post, best adjustable loop and tension adjuster for guy lines.
Round turn and two half hitches for making a rope fast to any post or ring, like mooring my buddy's bass boat.
Sheet bend for joining cord of same or different diameter, joining rope to tarp.
Clove hitch for PCT bear bag method.
Constrictor knot for binding bundles of poles, etc.
I try to find ways of using knots in daily life. Already this saved me some garage space by hoisting my bikes into the rafters. Anybody using interesting or specialized knots at work or at home on a routine basis?

