The MLB.com Gift Guru scoured each Official Brand Shop for examples of how you can get the most out of this opportunity in your holiday shopping. Here are some tips:
Memory Company: The Sublimated Pint Glass 2-Pack is one of the hot sellers at the Shop this year, so this one is pretty obvious. Buy one for $27.99 and add the same item at half off, making it four of these glasses in someone's cabinet for only $41.
Nike: Here's how to score a his-and-her package deal for $120. For him, order a KO Therma Fit Pullover Hood for $74.99. For her, get the Full-Zip Classic Hoody for $35 instead of the usual $69.99.
Highland Mint: These gorgeous displays are traditionally perfect gifts for anyone on your list. For example, commemorate the Pirates' postseason appearance by ordering an Andrew McCutchen NL MVP Dirt Coin Photo Mint for $99, then take half off so you also can get that Willie Stargell Photo Mint for just $45. If you're decorating a tree, then look at the Silver Coin Ornament . It's just $14.99, so get a pair for under $23.
Wincraft: Count down the time until Opening Day with a Personalized Round Clock for $39.99, and that means you'll be Home Sweet Home for under $10.
Forever Collectibles: Can decide which Reggie Jackson Hall of Fame Bobblehead to get? Order the "original" Swingin' A's bobble for $31.99 and then put him in pinstripes for under $16.
Majestic Athletic: J.B. Shuck is among those nominated for a GIBBY Award for Play of the Year, and you can celebrate his emergence with a No. 3 Angels Alternate Cool Base Jersey for $304.99. Then that Authentic Double Climate On-Field Jacket is just $67.50 instead of the usual $134.99.
'47 Brand: Let's say you're a Phillies fan. You get the Bruiser Long-Sleeve T-shirt for $44.99, and then add the new Game '47 Franchise Cap for $15 instead of the normal $29.99.
Antigua : Ready for some offseason golf? Fill your Medalist Cart Bag with some sticks for $249.99 and pull on that Exceed Desert Dry Polo for only $25.
Touch by Alyssa Milano: Want endless possibilities for under $50 total? Go for the Endless Summer T-shirt is $34.99, and then take half off the usual $29.99 for the Curveball Tank .
New Era: Red Sox fans can keep celebrating by ordering the World Series Champion 59FIFTY Fitted Cap for $37.99 and then score the 39THIRTY version -- worn by players in the clubhouse after beating the Cardinals in Game 6 -- for half off the usual $32.99.
The Emblem Source: There are patches for every team, and let's use the Twins as an example of what $18.72 can buy you on Cyber Monday. It's $12.99 for the 2014 All-Star Game patch and then just $6.50 for the 1965 version .
Mitchell & Ness: Celebrate Ernie Banks' new Medal of Freedom recognition by ordering his authentic 1968 road jersey and add that Washed Canvas Duffel Bag for half off the listed $39.99 price.
G-III: Cyber Monday has you covered for under $90 with a great all-season package. Start with the Veteran Lightweight Hooded Jacket for $69.99, and then take half off the usual $39.99 for the On-Deck Swim Trunks .
Steiner Sports: Mariano Rivera autographed a Final Season baseball that can be yours for $369.99, and then you have huge savings if you desire another item for that same price or under.
Majestic Threads: Order a Classic Fleece for $64.99 and then throw in a great T-shirt for just $16.50. You might want to keep one for yourself.
Fathead and Authentic Street Signs: If you're an Reds fan, get a Reds Logo Wall Graphic for $89.99 and then Crosley Field Street Sign for half the usual $39.99.
Premium Collection: If you've always wanted a pair of game-used baseball cuff links , now's the time. That's because you can take 50 percent off the cost of a game-used baseball bat bottle opener .
Topps: Add the 1998 Factory Set to someone's collection for $134.99, and then take half off the usual $59.99 for the 2013 Factory Set Retail Edition .
When in doubt or after the last shipping deadline has passed in December, remember that MLB.com online gift certificates in any denomination via e-mail are safe bets for any fan.