Easy-peasy on the Internet. Transactions are the result of communications. Communications can be fast, cheap and plentiful. So can transactions. This now becomes just a matter of simple algebra.
Income is a number of transactions times a profit.
Jump up the number of transactions and the amount of profit you need for a given income can reduce dramatically. The law of diminishing returns swngs into reverse and comes out in your favour. Anytime now they will be introducing micro E-money transactions on the Internet. Products and services for pennies. I can think of lots of Web products I could supply for a penny a time.