Baskets or decorative boxes for dumb shit; remotes, blankets, house shoes, extra throw pillows, dog toys, etc. These things don't actually NEED a receptacle, but they look better in one.
Throw blanket(s) for your living room or bedroom in a coordinating accent color. But, be sure they're machine washable. If you have dogs, kids or a man, they acquire a musky smell after a few weeks of regular use.
Fluffy, Knit, Lux
Home catalogs and/or magazines for your coffee table. Since you have to pay for them, magazines are cool if you actually read them (Real Simple is my real life fav). But, Catalogs are FREE and make you seem like you're the chick that flips through them on a Sunday morning with her coffee and sugar free protein pancakes. Pottery Barn, West Elm, Ballard Designs, Restoration Hardware... you get the picture. But real talk, they're helpful for design ideas and may even inspire you to purchase something if your budget permits.
From the same vein; pretty coasters for your coffee table. Giving your guests or family members the opportunity to NOT ruin your coffee table in a pretty way is always ideal. Heavy cardstock or ceramic sets do the trick.
Similar Coasters, Marble Coasters, Wood Coasters, Metal Coasters, Funny Coasters
Synthetic Plants/Flowers. Nothing adds more maturity to a home's design than looking like an adult that can actually keep a plant alive. Fake it till you make it. There are gorgeous affordable floral & greenery options at Home Goods, Marshall's, Tuesday Morning, Target, etc. that will fool all your guests, except your mother.
Similar Succulent Arrangement, Small Succulent, Lambs Ear, Greenery
Euro Pillows. I feel like this is one of the least talked about design elements that packs a lot of punch to any bedroom. Unless you're the type that can sleep on the fluffy pillows that stay put behind decorative standard shams, your sleeping pillows look like embarrassing floppy back-fat when you make your bed. The cure? Euro pillows! They're big enough to hide the comfy floppy pillows, while adding a sturdy back for your decorative ones to lean on. You'll need 2 for Queen and 3 for King size beds. Voila! But fair warning: your man will hate these more than your throw pillows. Who cares.