Just read this informative article about when it’s time to replace things. Oops…some of these I’ve used way past the due date :/

1. Pillows
Replace after: One to two years

2. Mattresses
Replace after: Seven years

3. Contact Lens Equipment
Replace after: Three months

If you buy contact lens solutions in bulk, chuck opened bottles after three months as germs migrate into bottles once the seal is broken. Experts also recommend replacing contact lens cases every three months.

6. Vitamins
Replace after: Two years

If stored in a cool, dry place, most vitamins are good for three years. The clock may have run down, however, while the vitamins sat in a warehouse, so it’s best to replace them after two years. (The Vitamin Shoppe offers an online coupon for free shipping of vitamins.)

14. Herbs and Spices
Replace after: One year

The bottle of fennel that has taken root in your spice cupboard has likely lost its favor. Whole spices, such as coriander and star anise, may last slightly longer, unless they have been exposed to the air. To identify herbs and spices past their prime, open the bag or jar and take a whiff. If there’s no scent, there’s no flavor.

Read more details and the rest of the list here at 19 things it may be time to replace.