we carry everything from, you know, old navy and gap to some of your more higher-end labels like marc jacobsnd prada and diane von furstenberg, and then j. crew, banana republic, urban outfitters. everything. we carry it all. >> the new things coming in all the time. it's a constant treasure hunt. by the hour, our inventory is changing. so you kind of never know each day, like, what you're going to see, what's on the bottom of a customer's bag that may be like that jewel. >> reporter: kerstin and spencer block opened the first store in tucson, arizona. today, buffalo exchange has over 30 locations around the country. >> our biggest goal with buffalo exchange is, in general, is to keep clothing out of landfills. >> reporter: their go-green attitude is what draws many customers in. >> i like how you can get renewable, like, clothing. >> it's like a reuse kind of thing. like, it helps the environment, but also gives you great new fashion. >> i try to stay pretty green and recycle and stuff, so i like wearing vintage because, i don't know, it's not wasting new fabric. >> reporter: and it's not j

he dressed marc as a friendly favor. >> jacob, you have friend who is attended. >> we spoke to peopleit went late into the night. >> and the early morning. >> the cake was served after midnight. the first guests didn't begin coming home until just after 2:00 a.m. apparently madeleine albright was there until the bitter end. >> the dancing queen. i hear there were a lot of emotional tests. how did bill clinton do? >> he did great. he made it through the toast without crying. he apparently didn't make it through dancing with chelsea to frank sinatra without shedding a tear. marc's toast was said to be great about how meeting chelsea changed his life and what a wonderful person she is. bill then, of course, talked about sort of what great kids they were and how much he admired marc. >> i hear the bride and groom know how to cut a rug when it comes to the tango. the first dance together. >> i'm not sure if it was the first dance but they certainly know how to dance. chelsea was supposed to be great. women's wear reported that they took dancing classes. >> right. >> courtney, when it comes