These things save me a ton of time (not to mention water) when I’m cleaning 4 dogs after a super muddy walk, and for anyone walking their dogs in similar conditions they could also be of great benefit. Dexas’ medium and large size washers also now come with lidded options, which are amazing for portability, eg. taking it in the car on a walk for use afterwards, and also for keeping the water warm on a cold day. I can fill one up with hot water before the start of a walk, leave it outside with the lid on, and by the time we get back just over an hour later the water is the perfect temperature for washing, and right there ready to use! These things are extremely sturdy too - one time I was carrying a my lidded size large washer, full of hot water, when I slipped on a patch of ice on the pavement. The washer went flying up into the air, crashed down hard onto the road, and skidded a couple of meters before stopping in the gutter. I was certain I was going to be completely soaked as I fell, but when I got up and retrieved it, there was barely a scratch on it and not a drop of water had spilled! So I think you can certainly rest easy chucking this into the back of your car or into a bag when full.