Joining Bottles - Micaella Pedros - plastic bottle rings, blow with heat gun or blow dryer, plastic shrinks to tightly connect joint. Bonus - no rust for outdoor structures. Totally going to try for trellises, etc.
From a single sheet of plywood and some dollar store bins she built this fabulous organizer. What a great way to use all that awkward space under the sink! Undersink Cabinet Organizer with Pull Out (Diy Storage Bins)