As supplies amass, they start looking less and less organized, and more like evidence for mental illness.
I've been experimenting with ways to group items, create compact and strong transportables.
1. Organza bags. You've seen sheer tie bags at dollar stores, or filled with Jordan almonds at weddings. Larger versions can be bought online, including ones that fit letter-sized paper. They are not waterproof, and seams are not strong, but they are helpful for grouping small computer accessories, pens, socks, kids' toys.
In a backpack, they'd help divide categories without adding bulk or weight. In the house, they look less chintzy than plastic bags.
2. Pillow cases. If you expect family and friends might show up at your house during a storm evacuation, extra pillowcases are useful
They can hold a few outfits and double as a pillow. People who come will have a bag to toss things in. Easily washable.
I've sewn a lightweight strap inside a few, that would not be noticeable while sleeping. I already had carpet binding, and it turned out a strong weave, easy to work with.
3. Gallon tie plastic bags. I know this is obvious, but wanted to remind that these are cheap, lightweight, compact, waterproof. Sometimes we imagine we need an official case, when it would be more efficient to throw it in a plastic bag. For those of you avoiding plastic for health reasons... ignore this line item.
I'll add more later, someone's at the door.