No matter what method you choose, don’t store avocado with the pit still in the half if you’ve already mashed or sliced it. The pit only protects the spot it touches.
And for the love of toast, don’t store it at room temperature. The fridge slows everything down—including the browning. Your avocado likes it cold and slightly neglected.
Look, you’re going to have some brown edges sometimes. That’s fine. Just scrape them off with a knife and pretend it never happened. We don’t judge here.
Now go forth and save those avocados. Your future toast, your future tacos, and your future self will be so grateful. You’ve got this.