Have you got a box full of tangled leads or electronics cords? Some, or most of them will fit inside a toilet paper roll middle so you can keep them neat and tidy. If you want to be extra organised, don't forget to label them. It is surprising how quickly and easily you can forget which is for what.
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Organizing electrical extension cords when not in use. Save empty TP rolls. Fold your cords in lengths of 8 inches and insert each one in an empty TP roll.