I've only cleaned out 3 now, but here goes. First up, I don't follow all the directions online to a tee.
Now then, on with the goods.
I unscrew the mouthpiece, empty whatever I can by tipping it (usually syrupy at this point so not much flows). Using a 5ml
juice thingy, I fill the clearo around half way with warm water, shake a little (the clearo, I only shake my booty on the dance floor), and empty. Fill with warm water again, and shake more vigorously for around 15 seconds now that the thick stuff is mostly out. I do this 2-3 times till the water runs mostly clear. Here's where I divert a little...
I blow on mouthpiece end into a paper towel a la cartomizers. Do around 5-10 dry burns to get most of the water out, but I don't get too crazy. Once most of the steam stops coming out (usually starts at around 5th) and the smell of old juice is faint, I just fill it and let it stand for a few minutes. The first few pulls are sub-optimal, but after 5 or so long pulls it's back to business.
All in all, other than letting it stand a bit, it takes ~3 minutes to do the procedure and doesn't take any extra tools. It's not as thorough as most of the vids I've seen, but it works well enough. Very little hassle involved, no pulling things apart and getting them back together. I haven't had one die on me yet, but have only been using them ~2 weeks.