Sam's is Discover or ATM/Debit card. Unless you get the business card with credit. I had one when I was in the restaurant business -- my son has one now that he's in the biz!!
I haven't visited Costco to see what payment methods they accept.
Southern Brethren BBQ Competition Team
"It's all about getting paid!" - Myron Mixon
"I love being hated in my hometown!" - David Hair
KingFisher Gator Rotisserie cooker, WSM, Stainless 5 burner with IR gas grill, Turkey Fryer, Weber JD Commemorative grill, slightly used Bandera chamber for future use as a cold smoker, Masterbuilt 40" insulated ELECTRIC smoker