[sotagals]

Are you talking about a throwaway booking or one you can cancel on the day?

I had the airport Clarion booked as I wasn't sure if we'd be up to driving. It was cancellable up to 4pm on the day.

As it happened we felt fine so just cancelled it for free - this was via the Clarion's website. I'm sure you'd be able to do this for other hotels if you check out their t&cs.