Not my work, but I found it on Tumblr and had to share! (Proud Slytherin here!)

gryffindor. the crackling of fire; roasted marshmallows; loud laughs; soft pillows; socked feet; burning your tongue while sipping a hot drink too quickly; jumping in coloured piles of leaves; the smell of cinnamon, orange and chocolate; hair blowing wildly in the wind; oversized sweaters; listening to loud music through headphones; baking with friends and laughing hysterically at the mess you create; watching stars from the rooftop; lying on the floor in a moment of deep thought
ravenclaw. watching people through foggy windows in cafes; overthinking; clouds of warm breath in the cold air; the cold crisp of air against your face; cups of hot coffee in the morning; listening to the hammering of the rain against the window, or the roof; wrapping up in soft blankets; silent chuckles; hidden smiles; the sound of pages turning; soft scarves; muttering something under your breath while concentrating; loose ponytails; deep conversations at night; paint in warm colours; tired yawns; falling stars
hufflepuff. messy buns; the sound of crunching leaves under your boots; knotted cardigans; wide smiles; star gazing; deep sighs; soft socks; rosy cheeks; fluffy earmuffs; vanilla scented candles; hanging fairy lights everywhere; warm and long hugs; hot chocolate with marshmallows; pumpkin carving; staying in bed just a little bit longer; flower crowns; sunny mornings; walking around with flowers in your jeans pockets; delighted laughs; capturing the last rays of sun with a vintage camera; intertwined fingers; cuddles
slytherin. cold fingertips; walking through the woods; inhaling the cold air at night; content smiles; the feeling you get when you can finally lay in bed after a shitty day; pressing your forehead against a cold window; combat boots and oversized coats; dark lip colours; the flickering of candle light in the darkness; misty mornings; black tea; leather gloves; deep, husky voices; amused smirks; walking barefoot on a cold, wooden floor; black, wide-brimmed hats and vintage sunglasses