What's the best way I can manage to walk all 4 dogs at once? I want to start walking them more regularly but can't really see myself doing more than one walk a day (for around an hour total). To get to the road we walk on, we usually either cut through the woods or a nearby trail (so they are offleash for that). But on the road I like to have them leashed in case of cars and don't want them going into peoples yards, but other than that the road is pretty dead. I was thinking of getting them step-in harnesses (less likely to tangle) and using 2 couplers and using a long line for each set. Any ideas?