After scrolling through Pinterest for some time I have come to realize that the same content appears over and over again in each category. Allow me to explain:
Popular: Cakes, memes, scarf-jeans-coffee ensembles, recipes with at least three different foods in their name, kid's activities, wedding dresses, tattoos, overdone "inspirational" quotes.
Everything: A culmination of everything you will see below.
Holiday gifts: Stuff that women want to buy their husbands; does not usually deviate from wallets, shoes, watches, and outdoor gear.
Videos: Craft-making tutorials and fuzzy music videos.
Place Boards: Mostly just trips nobody can afford.
Animals: Baby animals....and not much else, except for cat memes.
Architecture: Very few normal buildings; only bizarre, expensive ones.
Art: Online artists and obscure modern artists.
Cars and Motorcycles: Vintage cars you will never, ever find.
Celebrities: Hot dudes and people who are part of fandoms.
Design: Greeting cards, fonts, and color wheels, basically.
DIY & Crafts: Mason jars! Pastel colors! Crochet projects you will never finish once you've started them!
Education: Print-outs for kindergarteners.
Film, Music, and Books: Disney, Hunger Games, Downton Abbey, Doctor Who, Harry Potter, Sherlock.
Food and Drink: Cupcakes, cocktails, casseroles.
Gardening: Pictures of plants that any normal person would have dead in three days.
Geek: Things that literally scream "Please acknowledge that I am a female nerd".
Hair and Beauty: Braids, braids, more braids AND....crazy nails.
Health and Fitness: Already feeling guilt for those extra couple of pounds? Get ready to take your antidepressents....
History: Victorian dresses and people pinning things from their childhood.
Holidays and Events: Elaborate, over-the-top party ideas for toddlers who won't even remember the party anyway.
Home Decor: Everything must be distressed, neutral-colored, and have ruffles. Oh, and uncomfortable-looking furniture.
Humor: Making fun of the girly things you see on Pinterest and then going right back to pinning them.
Illustrations and Posters: Solid colors and geometric shapes in different arrangements.
Kids: What mother has the time and sanity to do these things?
Men's Fashion: Ties and suits. That is it.
Outdoors: Fancy RV's and recipes for things that you really shouldn't try to make while camping.
Photography: Weddings, graduations, pregnancy....did I say weddings?
Products: Expensive jewelry and appliances you can't afford.
Quotes: "New Age" sayings printed in a stupid-looking "indie" font over a watercolor background.
Science and Nature: Space....and pictures most likely taken from National Geographic.
Sports: Football, basketball, cheerleading, baseball, soccer, and tennis. Oh, and clothing with team logos on it.
Tattoos: Quotes, anchors, infinity symbols, birds. (Are these really the only tattoos girls get?)
Technology: Badass stuff that hasn't been invented yet and...you guessed it....you can't afford anyway!
Travel: Ever wanted to know how to pack a suitcase 700 different ways with stuff you didn't really need to bring in the first place?
Weddings: You can guarantee these ideas have been done several times already.
Women's Fashion: Outfits are composed of a shirt, cardigan, scarf, jeans, boots, and probably a coffee cup in her hand. And the colors are all monotone.