Thanks for the responses so far, and pardon the delay in my response to the responses. I appreciate the tips. Also, further context: the weekly baths started very, very recently. As in December. Sasha had some problems with hot spots for a couple of weeks and we started those at my vet's counsel to get those under control. I see where you guys are coming from, though. Before the hot spot episodes, he hadn't had a bath since June or July. He hasn't had a bath in two weeks and I doubled his fish oil in the days since posting the original message.
I appreciate the grooming tips so far. I'll give those a shot. What are some good brands for grooming wipes?
Age, 15 months. I don't think he has hypothyroidism...neither his behavior nor his metabolism suggest it. He's a big boy -- 24 to 25 pounds is healthy for his frame -- and I have a hard time keeping him at 24, even when he eats almost two cups of food a day (plus oil and a treat). My SO and I also have a 60-lb boxer-lab mix, and he and Sasha keep each other VERY busy.