1. Guinness when ordered last. It takes ages to settle so please order it first.
2. layered shots when the bar is busy. In the 5 mins it’s took me to make the 20 baby Guinness shots you’ve ordered I could’ve served 5 customers and potentially earned tips from them all.

I used to hate making black velvet(cider+Guinness mixed) because I could never get the mix right. I have since found a way to make it work.