A Dozen Dynamite Daily Deals

The days are heating up, and so are the deals. Today's best online bargains include 50 percent to 75 percent off floating coolers, freezing water bottles, cozy hammocks, and stylish Adirondack chairs. Other sizzling sales include custom Macbook covers, two-for-one concert tickets, and a best-selling Hoover, as well as window dressings for a penny and an offer from Sam's Club for Costco card holders.

Why we love it: Amazon's $41 price drop on this bagless best-seller drops the price by 51 percent, making it a no-brainer for anyone in the market for a new vacuum.

Related: Best Upright Vacuums Under $150

Why we love it: An instant $10 manufacturer's discount at Costco makes this combo $7 cheaper than the lowest price on Amazon, and $10 cheaper than Walmart's price for the 3D Whitestrips alone. That's something to smile about.

Why we love it: Eddie Bauer's 50 percent off clearance includes a number of water bottles, including this model equipped with a freezable gel insert to keep liquids cool when the mercury rises.

Why we love it: With 11 colors to choose from for six models of Macbooks, Tanga's deal on stylish and protective covers offers a budget solution for anyone looking to put the “personal” back in “personal computing.”

Why we love it: JCPenney's Buy-One, Get-One-for-a-Penny sale translates to roughly 50 percent off a wide range of styles in any size or color stocked by the store. Use coupon code SHOP3 for an additional 25 percent off online orders and save even more with free shipping on orders over $99.

Why we love it: Walmart's rollback on the ultimate surf-and-sun companion drops the cost to just $13, making it the best price online by $7. With six built-in cup holders and enough capacity to hold 72 cans and ice, a hot summer suddenly looks a whole lot “cooler.” Look for in-store pickup to save at least an additional $5 on shipping.

Why we love it: Shopko's discount on this tailgating tag-along takes $20 off the regular price, making it cheaper than the next best offer at Walmart by $10 -- and it includes free shipping.

Related: Best Grills Under $250

Why we love it: A deep discount from REI brings the price of this sofa-style hammock down nearly $100, to just $32. Spend $50 to qualify for free shipping, or use the online locator to find a location for in-store pickup.

Why we love it: Costco card holders can size up the savings at Sam's Club with a bid to tempt loyal Costco card holders to jump ship with free access through the Fourth of July.

Related: Costco vs. Sam's Club

Why we love it: ThinkGeek is knocking $15 off its exclusive, licensed “Game of Thrones” iPhone case (or $30 off a similarly-themed iPad cover). The clasp may or may not be forged from Valyrian steel, but a magnetic clasp and built-in pockets for storing a couple of cards add some function to the geek-factor form.

Why we love it: Consider this two-for-one ticket deal from TicketMaster a consolation prize for those not getting a pair of free tickets as part of the recent class-action settlement. Shows and locations are limited, but include marquee performers such as Demi Lovato, Chris Isaak, and Blue Man Group.

Why we love it: A $200 dollar discount from Hayneedle takes 70 percent off the regular price and includes free shipping. The built-in retractable ottoman adds an extra dimension of leisurely lounging.