Do self service vending machines.  

INCOME sources, current and potential: rent, laundry/vending, parking, storage, utility bill backs, etc...2.

Additional income streams- We usually like to use the common areas and vending as additional income streams on the property.

Add up all your rents from the 5 Units and any amenities this property may have that generate income (vending machine, laundry, etc).

Make sure to include pest control and trash collection if applicable#4 Add amenities that could give you more cash per month (i.e. vending machines, laundry room, storage)#5 Minimize your expenses. i.e.

Opportunity for extra income: laundry coin operated machines,vending machines, etc

Vending machines/locations can be very lucrative too. 

Coin laundry and vending?  

However, a restaurant does not include a business that primarily sells pre-packaged food or beverages not for immediate consumption, such as a grocery store; specialty food store; beer, wine, or liquor store; drug store; convenience store; newsstand; or a vending machine or kiosk.”Bad news for the drinkers among us, I guess.

I currently own and opperate a small vending business.