I put my phone # and Website on my post cards.

You can send out mailer post cards to neighborhoods where you would like to take on buyers and sellers.Some agents go door knocking for business.Your brokerage whomever you go with should be able to offer you some advice on how to get started. 

A proper presentation shows the full expense amounts under "operating expenses."

I have a great article on how to leverage your way into that first investment property and how to present it properly to the RIGHT mortgage broker, I know it works because that's what I did. 

And collect business cards of all the players in your area?

I have a group that meets monthly(my profile has details), there is another group that meets monthly, there are 2 real good BIG groups that charge $140+ per year but are great for networking.Start meeting people, learning, business cards and let everyone know that you are looking for properties to purchase.

I figured it was along those lines, but my google-fu was not working properly.

I do like the idea of card machines over coin but that may be more expensive for the card reader.

Not to pull the race card, but being black, single woman in Fredericksburg doing business in many capacities have been difficult for me.  

That means a proper business entity structure to insulate you from as much liability as possible in the event of a lawsuit.