You'd think the 50,000 flowers, four bands, a fireworks display and the platinum-and-diamond ring it took her husband seven months to design would have driven home the point. But shortly after marrying Brad Pitt in an estimated $1 million ceremony in Malibu in July 2000, Jennifer Aniston felt the need to seal their promise with one more detail: new note cards. "I asked what name she wanted on the top," says Los Angeles letterpress artist Claudia Laub. " 'Jennifer Aniston,' 'Jennifer Aniston Pitt,' 'Jennifer Aniston-Pitt' or 'Jennifer Pitt.'" Talk about no-brainers. Running across the 5-in.-by-7-in. off-white cards Aniston now sends to friends are the letters JENNIFER PITT, 12-point Egmont font, all caps. "They marked a rite of passage," says Laub. "Most people start with 100 cards. I think the fact that she ordered 250 says she's not letting this one go. This person is totally planning to stay married."

In a town where even the most solid-seeming partnerships -- from Tom and Nicole to Meg and Dennis -- are just an irreconcilable difference away from divorce court, Aniston's plan is an ambitious one. Sixteen months after Pitt swore to love, honor and "split the difference on the thermostat" with her till death do them part, friends figure Mrs. Pitt could have upped her stationery order tenfold. "If anyone's going to make it," says their singer pal Melissa Etheridge, "they are." What makes the Pitts, in the context of showbiz couples, extraordinary? According to Aniston's friend Kathy Najimy, their ability to be simply ordinary. "There's no insecurity going on," says Najimy. "They're themselves. They do the things you and I do: go to restaurants, play games, go to work, go on trips. They really, truly are in love with each other."

That was clear to everyone on the set of Friends when Pitt, 37, filmed his much publicized appearance alongside Aniston, 32, in the Thanksgiving episode. While offscreen the couple spent the holiday at the L.A. wedding of Aniston's manager Marc Gurvitz, onscreen they gave NBC's hit show -- watched by 13 million households -- its No. 1 ranking. Perhaps most tickled by the episode were the mister and missus themselves. Rehearsing the show for four days before taping on Nov. 2, they had "a blast," says a source. Adds producer Douglas Wick, who worked with Pitt on the just released Spy Game: "The chemistry between him and Jennifer is adorable."