Chaz, our worker, gets a brushing every time we come back from a walk in the local woods. He manages to collect all sorts of twigs, grass stalks and other sticky bits on his chest, feathering, underside and tail.
His armpits and behind his ears need regular de-matting and I find a Spratts comb easier to tease the knots out with although I do use an Andis clipper with No. 10 blade and a half inch comb attachment to keep his undersides and armpits neat without being too short.
Bob.