<prompt> Human: Im a high income earner about 150k salary bonus with my firm, and for a long time now Ive thought about driving for Lyft in my city on nightsweekends. I want to maximize profit, reduce taxes, etc. How to do this?Some ideas are to first become an LLC for tax purposes although I dont really know what this even means. Track all expenses related to the business. Etc. I also churn credit cards for points so this allow me to open business credit cards.Second idea is to buy a high quality used car with excellent gas mileage which would function as a backup since our first shared car is getting a bit old and we plan on riding it into its grave.Is this smart? Dumb? Not worth it? Thanks!EDIT: Second thought about the car: If its only used for Lyft, is that a full business expense that can be accounted for on my taxes?  <response>: Time is money. Id weigh that against what you could do to increase your earning potential at your primary job. Also, maybe some cash flow optimization is in order? 