What is the most logical next event?

How to stock a bar cart
Include the most common liquors.
Most cocktails can be made with one of the following base spirits: gin, white rum, vodka, bourbon, tequila and brandy. One bottle of each should be the foundation of any well-stocked bar cart.
It's not uncommon to include more than one bottle of each, especially if you already know which liquors you use the most frequently. You could expand the basics by including two bottles of each liquor-an average brand and a top shelf brand.