Summarize this article in one sentence.
It is by far the best way to make money in Skyrim. From level 1, start collecting Blue Mountain Flowers and Blue Butterfly Wings. Mixing these two ingredients makes a potion that sells for 80-250 gold depending on your alchemy and speech levels.  You can make well over 5,000 gold before even killing the first dragon. You can find these potion ingredients mainly in mountainous/forest areas.

Summary:
Use alchemy.