For about $5.40 a month, a Costco membership can generate big savings on groceries, holiday gifts, and more. Find out why a membership renewal makes sense.

Costco may have raised its prices, but right now you can snag a membership for cheaper than ever. The warehouse store chain's Gold Star Membership normally retails for $65. For the next few weeks, shoppers can purchase a 12-month membership through affiliate marketer StackSocial and receive a $45 Costco gift card,

Detailed price information for Costco Wholesale (COST-Q) from The Globe and Mail including charting and trades.

Make sure to choose the right Costco membership tier. Costco offers customers two membership tiers. A basic membership costs $65 per year, while an Executive membership offering 2