I watched some business videos on YouTube, and learned a really good tip. Mc Donalds is a role model for business ideas. One phrase made Mc Donalds so much richer: Would you like fries with that? Imagine how many extra millions they made by adding fries to every order.
We all want to sell games right? How many people have sold 1,000,000? Imagine if you had of tacked on another sale. Another $2 sale would have netted you another $2,000,000 dollars, just for asking one simple question.
When you sell your game online consider offering a bonus to every sale. An in-game perk, a mini-game, a mod, a folder with all pre-game sketches. It really doesn't matter. Just remember to put a checkbox beside it, and let the customer decide.
Hope this helps.
If anyone else has business advice, I'd love to hear it.
PS: There should be a business tips forum in the business section.