[header] How to stock a bar cart [title] Include the most common liquors. [step] 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. [substeps] You could expand the basics by including two bottles of each liquor-an average brand and a top shelf brand.