His advice is something of a no-brainer, but definitely worth mentioning: when it comes to making any drink, from a mojito to a martini, always place the ice in the shaker last. Adding the ice before you incorporate the other ingredients can severely dilute a drink. Within the time it takes to walk to your liquor cabinet and grab the vodka, the ice is already melting in the cocktail shaker. It makes perfect sense, and I hate to say it, but I've been sipping diluted drinks for years!
Do you always save the ice for last?