What sort of products sell irrespective of niche?

Tic Tacs

- Robert Andrew

Actually, there's plenty of money to be made online in impulse buys, though it doesn't really meet the OP's "regardless of niche" test. Call them what you want, but cross-sells, accessories and impulse buys are all over the internet and with good reason. But they do need to be targeted. I wouldn't put pitch cell phone accessories on a page about tropical fish, for example. And whether or not people read the reviews (and I bet they still at least look at them if they're available!), I'd want them to be quality products.

I'd also suggest that linking to cheap products that are bought impulsively can be a great way to introduce people to your business and what it offers as well as give people a low-risk chance to buy from you. This can be really useful when reaching out to new people, especially in places like social media where viral posts can easily go way outside of your normal network. And once someone has a positive experience buying something from you, that second sale (perhaps one that's less of an impulse buy) is that much easier.