Wow - these are all great tips! I usually am pretty cautious when it comes to bringing my 100 lb lab on the trail. If it's less than 10 miles and the trail is well maintained (and dogs are allowed), I will bring him. But when training for Whitney, and now training for Kilimanjaro, I leave him with a "sitter." It might be kind of selfish, but I don't want to have to worry about him and have it interfere with my training.
