Most of the people use to have just their credit cards with them and some checks.During the moving day this payment "tools" will not help you too much.You will certainly need cash.What for?!Let' see.When you go travelling with your carafter or in front of the moving van (as a guide) you will stop for to have a quick rest for sure.There you will need a coffee which means that you have to manage with coins with the coffee machine.If your drinks over you should buy some-cash.There will road and parking taxes where you will use cash.For fuel too.If you are travelling to far distance you will have a night at a motel.Do not use your credit car at suspicious places.It is better to have cash-not big ammounts for sure.