nice one sketchy, reminds me of the scene from naked gun when prescila pressley is up the ladder.
Back to the topic, If you phone up your CC company and tell them you want to cancel they generally give you 6-9months interest free credit on cash purchases.
You only have to pay back the minimum every month leaving your cash in the bank to make interest, probably better than 1% cashback.
I had a BA Amex card, yes it is not widely accepted at UK flying schools but generally well tolerated in the US.
Managed to get myself a business flight to MCO, flat bed an' all with the points I save d for the price of the taxes £153, the list price of the flight one way was £2,900. Wel chuffed with that.