Old razors can cause health problems like razor burn and skin infections, especially if you keep them in a moist shower where bacteria grows. Replace any blades that you’ve already used more than four times.
Toss mascara after three months and products with SPF after six. For everything else in your makeup bag, a one-year expiration is an easy rule of thumb, says Novak. “It wouldn’t harm you necessarily—although it could, or cause blemishes,” she says. Write the date on a product when you open it so you don’t forget. Don’t feel the need to hold on for a full year though—throw out products as soon as they change consistency, color, or scent. Make sure you know when to toss out these 12 beauty products.
Plastic shopping bags
Yes, those plastic grocery bags can come in handy, but that doesn’t mean you should keep an endless stockpile. Take a moment to calculate how many you actually use in a typical week. “Do the math,” says Richmond. “It’s what I use when clients are struggling with volume.” Add a pad of five or so to that number to give you a bit of wiggle room, she says.