Previous customers of mine (and no servers in general) are always blown away by our ability to be like "yeah you came in about two months ago, you were a 4-top at table 132, you had a Pepsi and you had an Iced Tea, you guys ordered an appetizer sampler and three short stacks..." And I think it's so funny. I don't know how but we can really remember the smallest details about the majority of the tables we've ever had.