I can't stress enough the need of securing a pet during car travel but I know many people don't have a crate or belt to strap in a large pooch. So that's where the Zip Line Dog Car Harness ($40) comes in. This new product from Brookstone (makers of North's seat) will let your pooch roam freely in the backseat or rear of an SUV but still securely holds him in case of sudden stops.