I think you can only make big money by using website for your affiliate marketing because you will always need a website that people can go into and get convinced about the link to the affiliate store.No matter how hard I try to learn about affiliates marketing I still don't make it with it. I have tried it many times and it is still no working for me. The only time I earn was when I made profit with a link that I got from crackrevenue. I got 4 USD form the link. Since then I have not earn a cent.
But with the way I see things and with different articles I read about earning with affiliate marketing, I don't think it is necessary to have a website or a laptop to be successful with affiliate marketing. I have read articles of some people doing great with affiliate marketing without having a website