Riding an electric bike has made me very aware of how much work can be performed with a given amount of power. Watt-hours aren't abstract anymore. 1kWh can get me and my stuff 120km easily if I pedal, probably closer to 80km if I used battery power only. Also instantaneous power, 200W is enough to move my bicycle, me and my stuff at a low cycling speed (15-20km/h) on the flat.

It really puts things in perspective when I look at a 1KW space heater. That's a lot of power!