If at all possible, when making purchases, try shopping on the internet.
Shopping on the internet will not only save you money on gas, but many times is less expensive than shopping in the retail store.
Parts for appliances are often found to be half the price, because you are buying from someone who has a worldwide customer base instead of just the people in their town.
If there are stores in which you purchase items frequently, consider signing up for their newsletters. Typically you will receive emails with coupons, percentage discounts and sale fliers. Well worth getting a few extra emails if you are going to be shopping from the same store on a regular basis.
Stock up if you find a great deal. On items that you purchase on a regular basis, be sure to buy a few extra when making your shopping purchase. You'll only pay the shipping and handling fee one time, plus you'll be saving money in the long run.