Great topic and I see everyone is varied. Miko and Koji get a bath when I think it's needed. Poor Koji, because he was having issues with messing his crate, he was sometimes subjected to 2 baths in a day. Since that stopped, I haven't had to bathe him.
So, typically, I think they get a bath about every 3-6 months (I can't even remember the last time I gave Miko a bath). I think I do it so rarely, because it usually takes me almost 3 hours to do a complete and thorough job (line brush first, bathe, rinse 3 times. condition, rinse another 3 times. towel dry. take a shower (me). blow dry. allow to air dry the rest of the way. line brush again.
btw. I use my hairdryer, on a med heat. I figure, it's a prof salon hair dryer (because I don't want it frying my hair) has all the fun negative ion/ceramic going for it. So it shouldn't fry their hair. I keep it on med so it drys faster. Haven't had any complains from Miko.
Koji, I can't keep still, so I just let him go for it. I hate that he has to shake off the excess, right up against my nice things. lol.
I'm curious for those that stated you use a "high-end" sham/cond, what do you use?