Cozeware 18,000 BTU 20 SEER2 Visio Mini Split AC/Heating System

Cooling and heating a room up to roughly 1,000 square feet without ductwork is the main appeal here, making it a fit for garages, additions, or bonus rooms that your main HVAC system doesn't reach well. It's currently $140 off the $760 list price, bringing it to $620. Apply coupon code "ONTYEPYG" to save. Deal ends September 16.  Buy Now at Amazon

This Tmini split system is $260 off the regular price at Lowe's, bringing it down to $399.99. It carries a 19 SEER2 efficiency rating and covers rooms up to 450 sq. ft., with both cooling and heating modes plus a 24-hour programmable timer. This deal ends September 15. Buy Now at Lowe's

At Walmart, this Frigidaire window air conditioner is on clearance for $299, at least $37 less than you'd pay anywhere else. It covers rooms up to 350-sq. ft. and includes a remote control, a washable filter, and a 24-hour programmable timer. Buy Now at Walmart

Cooling a single room without a permanent install is the main appeal here, since this unit rolls between spaces and vents out any standard window, making it a solid fit for renters. At $250, that's $40 off the $290 list price. Buy Now at Amazon

Works well for heating and cooling a larger room or small addition without ductwork, and the 20 SEER2 rating means better efficiency than most standard window units. Apply coupon code "CWHZ9" for a savings of $337.50. Deal ends September 30.  Buy Now at cozeware.com

Shop a large selection of home items, electronics, and more in Amazon's Resale section and get up to an extra 30% off your order at checkout. Shipping is free for Prime members. The amount of the discount is shown on individual product pages. These items in the Amazon Resale section are returns that have been put through a quality check process and graded anywhere from "Used, As Is" to "Like New" condition. Shop Now at Amazon

Shop a large selection of home items, electronics, and more in Amazon's Resale section and get up to an extra 30% off your order at checkout. Shipping is free for Prime members. The amount of the discount is shown on individual product pages. These items in the Amazon Resale section are returns that have been put through a quality check process and graded anywhere from "Used, As Is" to "Like New" condition. Shop Now at Amazon

Amazon Haul's tech and gadget clearance covers dozens of small accessories, from Bluetooth speakers and wireless earbuds to security cameras with night vision and portable chargers holding up to 10,000mAh. Most items sit well under $10, with basic USB-C charging cables priced as low as $1.27 and mini desktop vacuums and USB fans running under $15. Orders of $25 or more ship free. Buy Now at Amazon

Amazon's Subscribe & Save promotion offers 35% off a coffee lineup dominated by Lavazza, along with blends from Kicking Horse Nespresso, and Flavia. You'll need to clip the coupon on the product pages and check out via Subscribe & Save to get this discount. It applies to whole bean and ground coffee bags, Nespresso and Lavazza Blue capsules, and K-Cup pods. Shipping is free for Prime members, too.  Shop Now at Amazon