Not very, unless they are mudpies a couple of times a year is plenty. I wouldn't do more than once per quarter. Bathing too often will dry out the natural oils in their coats.
Dogs usually smell because of diet issues. My Lucy never gets that doggie smell. If your dog is starting to smell, the first thing I'd do is try and tweak his/her diet.whatt about when they start to smell?? haha
Then they would get a bath. But if they don't "smell" I see no point.whatt about when they start to smell?? haha