I put a luer-cap on a 5ml syringe, fill it about 80% with alcohol, drop the atty in, shake (actually, rock back-and-forth) for less than a minute and repeat until the alcohol stays clear (3 or 4 times removes clear
juice). I only do this once a week or so, or after I swap one out and store it. Once dry, I drip a few drops of pure VG and cap the atty for storage. Probably unnecessary but someone I trust once told me never to store an atty "bone dry" and it seems to do no harm.
Bottom line: Depending on your juice, you probably don't need to clean them nearly that often (nightly). Hot water works better than cold. Pure Grain Alcohol (PGA) runs through the air vents easier, evaporates faster and probably leaves less residue than tap water.
(Just my opinion)