Deep inside we all know that these filters need changing every once in a while. In practice, however, we get caught up in conference calls, PTA meetings, yoga classes, and that avocado that is now just perfect for dinner. Before you know it, it’s been five years.
When they go unchanged for too long, these filters can have mold, dust, and bacteria build up in them. We may not feel it at first, but if you have respiratory problems (or live with someone who has them), you would do well to replace them twice a year at least.
Eye infections are bad. They can be even worse when you wear glasses. But they are the absolute worst if you wear contact lenses on a regular basis.
One way of reducing the chance of getting eye infections is to change your contact solution whenever you place them back in the case. But there is something more you can do — replace the entire case once every three months. Sounds annoying? Well, eye infections are even more annoying, so do your math.
The best thing about cereal is its crunchy texture, and putting it in the fridge will make them lose it and go stale. A quick scan of the cereal box will tell you to store it somewhere cool and dry, like one of your kitchen cupboards.
In terms of shelf life, a box of cereal can stay fresh for 6-12 months if it's never been opened. After it does open, however, it will stay fresh and crunchy for 2-3 months (as long as you close it when it isn't being used).
Chips can generally last for a really long time. So long that an unopened bag can stay fresh for months!
In fact, all the salt in the snack also acts as a preservative, which helps the snack last a long time even after it has been opened and exposed to oxygen. While they will stay ingestable for a long time after being opened, their quality won't be as good and their texture will grow stale.
This may come as a surprise for some, but alcohol doesn't stay good forever. If you ask researchers at Bacardi, they will tell you that alcohol stored in glass bottles is a little more vulnerable to warm temperatures, air, and light, which can eventually spoil it.
Bottled wines (both red and white) can stay fresh for a year or two. The expiration date on beer is usually 6-9 months before it actually expires. Alcoholic beverages like whiskey or vodka can stay fresh for many years. Once the bottle is open (for any of the aforementioned drinks), it will only be safe to drink for two or three days.