Black Friday may have come and gone, but many of the deals live on. Retailers like Amazon, Best Buy, Walmart, and Target kicked off their sales weeks ago. We expect the top markdowns last to through Cyber Monday — as long as they don't sell out first.

So for those bigger purchases, shop Black Friday, but for online exclusives and extended savings on toys, beauty products and fashion, Cyber Monday is the best bet on Amazon.com, Carls said. Many of the Black Friday deals will continue through Cyber Monday, and throughout the day, and online exclusives will pop up too, according to experts.

These days, Walmart has been working overtime to not just match the competition over at Amazon; in some cases, Walmart's prices are eve lower! If you want to save some cash, comparing prices across the two retailers is essential.