Use Adsense

If you have a personal website, a blog or something on the web, you could use various advertising engines such as Google Adsense (It is used on this blog to show you ads, if you noticed). Every referral which gets converted into a value can earn you a commision. You could put it up on certain part of your site, and check if your audiance likes it.

If you like to start using Adsense on your site, click on the buttons on the right.

Use Coupons

Check sites such as deals2bought, deals2buy, fatwallet for deals of the day and coupons. You may find something that can save you from pennies to 100$ and more...

Some of the sites that I would recommand:
www.deals2buy.com
http://deals2bought.blogspot.com
http://www.fatwallet.com

How to save money while filling up $3 Gas

Here are some tips listed by Paul A. Eisenstein in Parade. About driving and your care:

• avoid aggressive driving
• use cruise control when traffic islight
• cool off with the air conditioner when driving on the highway
• lose the roof rack
• back off the "bling"
• keep your tires inflated
• use the right oil
• stick to the gasoline grade recommanded for your vehicle

He also has given some of the tips for filling up the gas:

• Gas is normally cheapest on Tuesday evening and Wednesday morning
• Gas is dense when it is cold (late night, early morning), fill at that time
• Fill it at busiest gas station, you are likely to get gas free of containment
• Avoid gas station on toll road (they can be costly)
• don't top off, your car burns more gas at that time
• check http://www.gasbuddy.com to find out cheapest gas station in your area
• and http://www.fuelcostcalculator.com before making a trip.

Read the article at http://www.parade.com/articles/editions/2006/edition_09-03-2006/Saving_Gas.