We're barely out of Halloween, and retailers are keen to get the holiday shopping season started with earlier Black Friday offers.

One of the biggest shopping days of the year is almost here. Here are our best tips and strategies to shop smart this Black Friday.

Christmas tree sale: deals from $21 @ Home Depot The holidays are fast approaching and if you're in the market for a new tree, now is the time to buy. As part of its early Black Friday sales, Home Depot has artificial Christmas trees on sale from $21. The sale includes everything from small 24-inch trees to larger 8-foot trees.

It used to be that Black Friday deals would first become available to consumers on -- wait for it -- Black Friday. You know, the actual day after Thanksgiving. But these days, Black Friday deals tend to start showing up in early November and last the entire month.

Officials announced that Walmart will be holding three “Black Friday Deals” events through November and into December.

You don’t have to wait for Black Friday itself to save big. All the major retailers have already pulled the trigger on offering deep discounts heading into the holidays. The likes of Amazon, Walmart and Best Buy are offering eye-catching sales on electronics, apparel, home appliances and video games you can shop now.

According to Royal Caribbean Blog, the unofficial fan blog for the cruise line, travel agents were notified of Royal Caribbean’s plans to run a series of Black Friday deals that will begin on Nov. 8. The Royal Caribbean website shows that its current BOGO 60% off cruise fares and Kids Sale Free offers end Nov. 7.

Amazon SG will likely begin dropping deals at least a week prior to the official Black Friday weekend. The official Black Friday weekend culminates in Cyber Monday on December 2, but we fully expect Amazon to keep the deals coming for a few days after,

Shop early Black Friday savings on everything from streaming devices to office must-haves with these under-$100 deals.