The vape store that I like best has a separate "vapor bar" where you can try the various flavors. There is a tip jar for the people that help you pick out your flavors. They then give you a ticket to take to the counter with the name of the flavors you've picked out. They were having a sale that day - 3 10 ml bottles for $15, which I took advantage of. I also bought some hardward, so I spent over $60 total. I threw them $2 tip. They were knowledgeable and helpful. Is this a reasonable amount? I didn't spend more than 10 minutes picking out the three tobacco flavors that I purchased.