Collapsible cups and bowls make drinking water on the go easier for you and your dog. You can buy them at the store, or you can just make some yourself with a little duct tape. This video from the HouseholdHacker YouTube channel will show you how to make a cup or doggy bowl you can fold up and stick in your pocket. Grab a wine or liquor bottle (or something larger for a dog bowl) and roll your duct tape around the bottom on the outside. Make sure the sticky side is facing out so none of the adhesive will be on the "inside" of the cup. Keep placing strands of duct tape as shown in the video until you have no holes where liquid could leak out. Then go back over the entire thing, but this time face the sticky side in. Once you've got all the sticky parts covered, just pull it off the bottom of the bottle. Test it for leaks, fix any holes you find, and that's it. You have a portable, collapsible cup or bowl you can take with you anywhere.
Simple Duct Tape Life Hacks [YouTube]