If the $60 yearly membership fee has kept you from joining Costco, you might be interested in this deal. Now through August 22, new members will get a free $40 Costco gift card after joining! This effectively discounts your first year by 66%.
While this is only valid for new members, the fine print also clarifies “to qualify as a new member, an existing Costco membership must be expired at least 18 months or more.” So even if you let your old Costco membership lapse, you'll still qualify as long as it 1.5 years ago.
On top of the membership discount, you can save an extra $40 off any order of $250+ on Costco.com. I believe both $40 offers are stackable, so you'd be able to save $80 on any item over $250.
The $40 gift card will be mailed 4 to 6 weeks after sign-up. The $40 off any order of $250+ on Costco.com coupon will be emailed to the email address on file.