Travel between Canada and USA

[grncrd]

Hi,

I am a German citizen with Canadian Permanent residency. Germany passports are on the USA visa waiver programme.

I will be living in Vancouver and be travelling regularly to see my parents in the USA. I understand that the visa waiver programme is 90 days in the USA. I also think that they don't always 'reset' the visa waiver counter when you leave to go to Canada.

How do I go to Seattle from Vancouver on a regular basis without having problems with the USA entry VWP. Will getting a USA B2 visitors visa help at all?

Thanks,

Stephen