I dyed my 15 yards of cotton warp the other day, and then bundled up the yarn in cellophane to sit for a day (and a half because I got distracted) in the Arizona heat. That gave the dye time to bond to the fibers. Then, it was time to carefully unwrap the yarn, and re-chain it up so the threads didn't get tangled up. In the past, I've just unrolled the warp bundles in a long row across the length of by back yard. But, it is August in Phoenix, and it is bloody hot out there.
So instead, I decided to try chaining the whole batch at once, so I didn't have to wander all over my back yard in the heat and sun. I knew that might make a mess (gloves and an apron were a must), so I got a laundry basket and lined it with a garbage bag. I unrolled the bundle a yard or so at a time, and chained it into the basket. This worked really well, and will be the method I use from here on out. Everything was contained, and the dogs were less likely to interfere. (I have 4 medium sized, very friendly and curious dogs, that want to "help" me with everything.)