I am increasingly using Google Shopping + Paypal. By using Paypal I can avoid entering credit card details and authenticate with 2 factor. The Google element

I am increasingly using Google Shopping + Paypal. By using Paypal I can avoid entering credit card details and authenticate with 2 factor. The Google element gives user feedback and increasingly they are offering the "Trusted Stores" insurance. You also avoid the endless chaff of product lines that are unrelated to your current purchase.