What extra precautions do I need to take during this shopping and festive season?

Don't apply for too many store cards just because they are giving sign-up bonus. Multiple credit inquiries on your credit report can hurt your credit score.

Target, Walmart, Best Buy and other stores are offering many attractive deals now. So, you should get your item by keeping those deals in mind. But that doesn’t mean that you need to using coupons. Browse multiple websites and search local newspapers to grab as many coupons as possible. They will help you to save more.
One more thing - You can check few price-comparison websites like pricegrabber[dot]com and compare the price of the items you’re planning to buy.

Create your festive budget and stick to it.

Monitor your credit card statements to be aware that there are no fraudulent charges.

1: Shop only on authentic websites!

2: Try not to use your debit card, when shopping too many goods!

3: As @GoodNelly said, check your invoice and purchase statements!