That ULA looks like a perfect solution. My low budget one was to pack everything I wanted to stay into a construction garbage bag pack liner (much heavier than standard kitchen or leaf bags) and rolled the top and held it closed with a strap. Worked well with some care. If you don't have a pack already that ULA looks to be the best of both worlds. I cut the floor out of my packraft and turned it into a light weight packable float tube for fishing, so its the canoe for me. I've also strapped a large dry bag to an old Jansport pack frame. Cumbersome, but carried well.