Agreed, frequent washing a commuter is pointless, time saving tricks make the rare occasion more palatable. I have my routine down to 15-20 mins, not including total of 5 mins clean up and prep. But short wash time is down to practice, you can't faff about!
1. Remove quick link chain and cassette from rear wheel
2. Bang them in ultrasonic cleaner with a mix of water and degreaser for 20 mins.
3. Get out the pressure washer , blast the frame and wheels (not, hubs, bearings & motor if elec)
4. Spray a little water displacer (GT 85) on moving bits, being careful not to get that on discs or calipers.
5. Don't sweat a little grime in the hard to get to spots. Dry off frame with microfibre towel.
6. Put on the kettle, 5-10 minutes to sup tea or coffee
7. Out comes cassette and chain for rinse and reassembly.
8. Lube up
9. Tidy everything away.