More from EW
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Don't Marry the Wrong Guy
In the pilot of Friends, Aniston's Rachel Green busts into Central Perk after having run out on her fiancé, Barry. Rachel learned to live life on her own terms and not trapped in a loveless marriage.
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Do Prove You've Moved on From Your Ex
When Rachel's ex Barry married her former maid of honor Mindy, Rachel acts as any good mean girl would and agrees to be a bridesmaid. With her faithful boyfriend Ross by her side, Rachel manages to overcome the gossip with a rousing rendition of Barry Manilow's ''Copacabana.''
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Don't Move Too Fast
Monica, Rachel, and Phoebe dress up in wedding gowns to nurse their single lady wounds. Unfortunately, when Rachel's on-the-fence boyfriend Joshua sees her all dressed in white, his commitment issues flare up and he flees the premises, never to be seen again.
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Don't Drink and Bride
Covered in permanent marker and drunk on all that Las Vegas has to offer, our favorite ''will-they-or-won't-they-couple'' Ross and Rachel tie the knot in an alcoholic-induced hazed. Divorce ensues.
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Don't Let Other People Think The Bride Is Pregnant When It's Actually You
Before Monica's wedding, Phoebe discovers a positive pregnancy test in the trash, and Rachel lets her believe it's the bride-to-be's, when in reality, it was hers all along.
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Do Accessorize Your Bridesmaid Dress With A Chic Coat
A blizzard almost ruined Phoebe's nuptials, but the cold didn't stop Rachel from looking fashionable — and warm — in her bridesmaid ensemble.
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Don't Sleep With A Man Who Might Be Your Father
In The Graduate's semi-sequel Rumor Has It..., Aniston's Sarah finds herself drawn to Kevin Costner's Beau Burroughs — the man who slept with both her mother and her grandmother — while in town for her sister's wedding. After their brief affair, Sarah realizes Beau might be her father. Luckily for everyone involved, he's not, and Sarah learns to live happily ever after with Jeff (Mark Ruffalo).
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Do Let A Woman's Best Friend In To Your Life
Dogs are great for marriages — just ask John and Jenny (Owen Wilson and Aniston) in Marley & Me.
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Don't Settle For Less Than You Deserve
Aniston's Beth realizes that Ben Affleck's Neil has no intention of putting a ring on it. So she breaks up with him before her sister's wedding in He's Just Not That Into You.
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Do Realize What You Have
Following her father's heart attack, though, Beth comes to understand that she doesn't need a piece of paper defining her relationship with Neil. Of course, he marries her anyway.
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Do Look At Someone Differently
In Just Go With It, when playboy Danny (Adam Sandler) asks his assistant Katharine (Aniston) to pretend to be his ex-wife so that he can score with Palmer (Brooklyn Decker), Katharine had no idea that the charade will lead to a lasting relationship with her boss.