People tend to reflexively assume that fun events will go by really quickly. Chris Clor/Getty ImagesWhen a vacation approaches, do you ever get the feeling that it’s almost over before it starts? If so, you’re not alone. In studies Gabriela Tonietto, Sam Maglio, Eric VanEpps and I conducted, we found that about half of the people we surveyed indicated that their upcoming weekend trip felt like it would end as soon as it started. This feeling can have a ripple effect. It can change the way trips