Junk mail seems to annoy anyone with a mailbox. No matter how many times you sign up for "do not mail" lists or write "unsubscribe" and send the mail back to the sender, it seems to never end. The biggest culprits of junk mail are companies who send out advertising supplements in the mail. These envelopes are stuffed with coupons and advertisements and can often appear to be real mail from the outside. To remove yourself from these mailing lists, contact the biggest mailers: Red Plum and Val-Pak. Go to their websites at save.com and coxtarget.com to remove your address for good.

Just because something's in the shower doesn't mean it stays clean. If you use one of those plastic mesh sponges to lather up when you shower, it needs to be periodically cleaned. Over time, the moisture buildup can create a breeding ground for harmful and smelly bacteria. To clean it, just toss it in the washing machine whenever you launder something that uses hot water. This will eradicate the bacteria and germs. When it's done washing, don't toss it in the dryer, just air-dry it.

In the past, if a tire got punctured, it would almost immediately go flat, which was the reason for the spare tire -- you'd always have the extra tire to replace the flat right there on the spot. But a spare tire is heavy, which weighs down the car and decreases the fuel efficiency. Tire manufacturers like Bridgestone are creating more run-flat tires that will continue to work up to 50 miles after your tire gets punctured. This gives you time to drive to a dealer and get the tire replaced. This new tire technology eliminates the need for a spare tire and can improve your car's overall fuel efficiency.