I've been stocking up on Pampers Swaddlers for baby #3 but I went to Costco yesterday and for the same about of diapers in a pack, Kirkland brand were $14.99 for size 2 while Pampers are $38. That's a huge difference! Do the cost of diapers matter to you or do you just buy whatever works and suck up the cost? Kirkland has worked for E since she was about 6 months (but we only used Pampers before then) so I'm hoping they'll work for this baby!