Costco is one of Clark’s favorite stores for the savings. After all, the big box membership retailer only marks up its products a maximum of 15%, but most items are much lower than that. Although you need a membership to shop at Costco, there are many different items that will single-handedly pay for your Costco membership.
However, it is easy for spending to get out of hand at Costco, as the bulk quantities add up quickly. To avoid this, Clark says he rarely uses a shopping cart!
This week, Costco members can also take advantage of the retailer’s featured items at your local warehouse. Another way to save is to take a look at the monthly deals. Here are a few of the very best deals as part of this month’s Member Only Savings. These deals are valid from September 21 through October 18, 2026, unless otherwise noted. Note that some items are lower in price at a warehouse location, and may be higher in price online. You’ll want to comparison shop to make sure you’re saving the most! See more items on sale here.
If you’re not a Costco member and you’d like to be, check out this deal on a membership.
Save with these great deals at Costco!
Midea 10-in-1 fully automatic espresso machine for $399.99
That is a $100 savings. Find a similar machine at Target for the same price.
WINIX C710 4-Stage True HEPA air purifier with Wi-Fi and additional filter for $99.99
Save $30 on the regular price.
RoC Retinol Correxion Day or Night Cream, 1.3 fl oz, 2-pack for $28.99
Compare to $37.99 at Roc.
Vita Coco, Coconut Water, 11.1 fl oz, 18-count for $21.19
Save $5.80 on the regular price!
Hershey’s Variety Pack, 30-count for $33.19
Save $6.80 on the regular price.
Caribou Coffee Caribou Blend K-Cup Pod, 80-count for $38.99
Save $9 on the regular price.
Harry’s Chrome Edition razor set 16 cartridges + 1 handle for $21.99
Save $8 on the regular price.
First Alert Precision Detection, 10-year battery smoke and carbon monoxide alarm, 2-pack for $64.99
Save $15 on the regular price. Compare to $87.55 at Max Warehouse.
Tide Pods Unstopables laundry detergent pods, Fresh, 80-count for $15.99 in-store
Save $4 on the regular price.
Dyson V10 Konical cordless stick vacuum with car cleaning kit for $369.99
Compare to $399 at Best Buy without the car cleaning kit.
$100 worth of IHOP gift cards for $79.99
Save $20 on delicious pancakes!
Save up to $50 on clothes and shoes
Buy 10+ and save $50 on apparel!
Save up to $60 on a set of 4 BFGoodrich tires
Installation is included! Valid through October 18.
Clearance deals from $6.97
Find deals on all kinds of items ending in 97 cents!
Save up to $1,300 on select appliances
Choose LG, Whirlpool or Samsung.
Save on select travel bookings through Costco Travel
Find deals to Europe, the Caribbean and more!
Save extra through the Costco Auto Program
For example, you can get up to $1,250 in member incentives on select certified car purchases. You can also save 15% on parts and service.
Why I Dig this Deal:
Warehouse clubs like Sam's Club, BJ's Wholesale and Costco are great places to save big on everyday essentials!