Can you tell the difference between a real good buy or just some company or store telling you it is? It’s easy to get sidetracked with end caps and those signs telling you buy me because I’m 20 percent off…but just for a short time so don’t be a loser by missing out. Here are five tips to help you determine what’s a good buy and not just marketing hype… Know the Value If you don’t know how much something is supposed to cost or what the regular price is for an item, then any sale telling you it’s 20% off looks like a bargain. Whenever you’re grocery shopping or…