This holiday season, retailers may nudge you a little harder to sign up for their store credit cards. Perks could include discounts of 10% or more on your first purchase and introductory offers that allow you to delay payments, interest or both.

There’s no need to waste your time — and some short-term damage to your credit score — by applying for a credit card offer that’s out of your league. This first step is crucial because the information in your credit reports — and the scores that are calculated as a result — will be critical in determining which cards you get and how much you pay for them.

Keep in mind that changes in your FICO score take a long time to occur but if you live by the following guidelines, your credit score will improve over time.

Part of rebuilding your credit is proving that you can pay your bills on time. If your bad credit episode left you without any credit cards, you’ll have to open new ones.

Credit scores — they’re like report cards for grown-ups. It’s a three-digit “grade” you get on a scale that ranges from 300 to 850. Your score indicates your creditworthiness to potential lenders, banks, landlords, insurance companies, and even to some employers, for instance. I’m sure you know that the higher your score the better.