During flea and tick season, I would also recommend having a spray bottle handy with a mixture of half water and half ACV. Give your pup a quick spray if you are going into the woods. This will not only prevent the fleas, ticks and mosquitos, but it will condition the coat and make it soft and glossy. If you are worried about the odor (which it does stink), it disappears really quickly.
I use a tiny bit of ACV in my dogs kibble along with kelp and Nupro. The ACV is awesome for the digestion.