1. Pack a lunch - People spend a lot of money eating out every day for lunch. If you spend just five dollars a day (which is quite low - most people spend more than that), five days a week, you easily spend an extra $100 or more on lunches, usually fast-food ones that aren't even healthy. Try packing a lunch either the night before or in the morning before work - you could even pack leftovers from dinner. The cost of packing your own lunch is low - maybe only one or two dollars and it's healthier.
2. Change your oil - Doing your own oil change on your car can save you money, not just on mechanic fees, but also on gas mileage (a car that's oil is regularly changed gets better mileage). Though it can seem daunting, changing your own oil only requires a couple ramps, a container to catch the oil, a wrench, an oil filter, and, of course, oil. If you don't know someone who you can watch and learn from, there are many auto repair and maintenance books that take you through the process. You can buy the oil and the filter for $15 or less - getting it done at a shop can cost twice as much. Also, you only need to change oil about every 7000 miles. The old rule was every 3000 miles, but car companies have said that it is actually an outdated rule that people still follow (and auto shops still advertise); cars use oil much more efficiently now, so the changes don't need to be as frequent.
3. Use the library - There's no better deal than reading books and renting movies for free. Libraries have really begun to expand their collections and become more high-tech. The only drawback to the library is that you may have to wait for popular new releases, but a little patience can save you $25-30.
4. Cook from scratch - While the convenience of prepackaged mixes and meals can be appealing, it comes with a cost. If you learn to cook from basic ingredients, you can cut back on your grocery bill. Having a few key ingredients that can be used in a variety of recipes is much more cost-effective than buying five, individually packaged dinners. For example, if you want to make a batch of chocolate chip cookies, instead of buying pre-made dough (which can cost about three to five dollars for one batch), you can make your own with sugar, flour, eggs, butter, and chocolate chips. Considering that you are using the basic ingredients for many other recipes, the cost of the cookie recipe is probably only a dollar or so at the most. In the end, you'll find cooking from scratch relatively easy, more satisfying, and a great way to cut back on spending.
5. Make your home energy efficient - Utility bills can add up if you're not careful. There are lots of ways to cut back and save energy in your home. In the winter, check around the windows and doors of your home for drafts. If you see any gaps or feel any cold air, caulk around the windows or use weather-stripping at the bottom of the door. You can keep your home cooler in the summer just by using a ceiling fan - a fan can make the room feel more comfortable, even if room is kept a little warmer. In either season, use blinds and drapes effectively - in winter, open them to let the sun heat the rooms; in summer, keep them closed to keep the sun out. There are many other methods you can use to cut on utility bills - like setting your water heater temperature at 120 degrees or washing more laundry in cold - and these small steps can add up. You can research other methods on the Internet or even ask your utility company. In many cases, some utility companies will do energy audits for a small fee or offer rebates for using energy efficient appliances.

There are many books and websites that have lots of information on how to cut back on spending - whether on your grocery bills, your utilities, your clothing, entertainment, and more. By saving on the small things, you'll be able to save for and enjoy the finer, bigger things in life.