Tube filled wires
Do you struggle with finding out what to do with used toilet paper and paper towel rolls? Do you feel bad just throwing them away and want something to do with them? In this modern world, nearly everything is electronic, and nearly everything comes with a cable (or even two).
Organizing everything, from your phone charger, to ethernet cable, to camera cable, and so on, can result in a big tangle of wires. A cheap and easy way to solve this problem is to save up old toilet paper rolls and use them to store each wire. That way, you not only sort out the cables, but also those used rolls.