One of the most useful articles found on the web from lifehacker.com – Thanks Matt for the link!
First Quarter (Jan/Feb/March)
Gas grills & air conditioners: They’re obviously off-season, but it’s not like “next year’s model” will be remarkably better or different.
January
Bicycles & Sporting Goods: Not only is it prime off-season pricing, you’ve got the attention of salespeople who think they’re talking to someone who’s for real about their exercise.
Furniture: It’s both a lull and a changeover for the showrooms, so find that dining room set and haggle.
Digital frames: Hey, where’d all …

Ladies and Gentlemen, these here are the tried and true rules of haggling.  We must express caution, as it will lead to excitement and adrenalin pumping through your body.
1.  Stop caring what people think of you.
Many people hesitate to haggle because they don’t want to seem cheap or argumentative. But are you really willing to pay top dollar just so you can preserve the esteem of total strangers? You’re only meeting them this once, and you’ll probably never meet them again.
Even if you’re shopping with people you know, they might …

Before buying anything online, always look for discount codes.  This is a very simple, yet effective way to save money.  Let’s say you are shopping at JCPenney online (hypothetically).  Type in your favorite search engine “JCPenney discount code” or “JCPenney coupon code”.  Finding one can save you big bucks.  That’s the only way to shop online.

Never pay full price for meals.  Whenever we are splurging on a nice meal out, head to restaurant.com to see if that store accepts their gift certificates.  Usually they have good deals like a $25 gift certificate for $10.   When we go out, we make sure to pick a place that accepts them. 
We just used a gift certifcate last night, and got our $40 meal for only $25.   Not bad for a Saturday night!