Roll it and move on.

Don’t bother. Bikinis are made of stretchy nylon, spandex, or polyester — none of which wrinkle like cotton or linen. Even if you fold it and stuff it in a corner, it will smooth out the second you put it on. Your body is the iron.

If you really want to be neat, just roll it into a tight little burrito. Takes two seconds and saves space. That’s it. No Ziploc bag, no tissue paper, no garment folder.

You do not need a packing hack for three ounces of fabric.