DIY: wire hanger car battery holder

So I woke up one morning and put on my workout clothes on only to find out that the car won't start. One of the overhead lights were on which made the battery dead. After AAA guy Martin took a look, he said I had to buy new batteries. So I did. But all this time my battery holder was missing. So Martin asked me to get a wire hanger and made this amazing makeshift battery holder! He took the wire out of the paper tube, cut the wire in half, hooked each ends of the wires to the small holes on either sides where the battery sits, and then he simply twisted the other ends together while cushioning the battery with the paper tube. You can find a DIY anywhere! Nevertheless I still have to get an actual battery holder.