Hi Please tell me how you found this information - I would like to read more about it: "As far as I can gather, I am limited to 90 days in the US on Visa Waiver, and once I exit to Canada, the I can stay in Canada for up to six months, but If I have used my 90 days in the US, I cannot reenter the US ...

I am British. Is it possible to exit the USA at the end of my 90 day cut-off on the visa waiver program via Canada - then re-enter the USA for a further 90 day holiday via Canada rather than returning to the UK?
I want to save money on plane tickets.