[eloisant]

I have already stopped using Amazon for specialized products.

I buy board games on sites that only sell board games.

I buy electronics/computer parts on sites that only sell that.

[jimhefferon]

I also try to do that. However, the more sites that hold my information ...

[eropple]

Your information isn't particularly valuable outside of financial data, and most of the ones you're likely to go to store your financial data centralize on a few generally-very-well-behaved providers. And credit card fraud is the bank's problem, not yours.