Sitting on the couch together and not feeling obliged to cuddle
There's nothing wrong with cuddling -- but there's also nothing wrong NOT cuddling. When you've made the commitment of being, well, committed, you don't need to constantly smother each other with physical affection, because the true connection is -- wait for it -- in your brain.
Borrowing each other's clothes, regardless of gender norms and size
She looks terrible in your oversized black hoodie, you look ridiculous wearing her fleece beanie, but who the hell cares. When you can throw caution to the wind and re-appropriate each other's outfits for your own personal gain without a care in the world -- or taking issue with how they look -- then that's a win.
Asking to borrow a couple of dollars as if you were asking your mom
Money can be as touchy a subject as food sometimes, which makes this next white flag extra meaningful. When you start doing chores together -- laundry, grocery shopping, IKEA trips -- you start to realize the value you can get from sharing everything with someone else. Suddenly, feeling obligated to pay someone back becomes a thing of the past. That makes all loose change and dollars seem pretty unimportant, which doesn't make it a big deal when they want to borrow a fresh George Washington for that sweet, sweet IKEA ice cream.