Places like BJs and Costco should have sample sizes of some things that you can buy once or have a "sample sale" day. I bet more people would buy diapers and stuff there if they could test a few first - I know I would. Like the poster below was saying, who wants to get stuck with 3 million diapers that you hate?
Formerly known as elmoali

Re: Bulk stores
A couple of months ago, I went online and ordered samples of the Costco Kirkland Supreme Diapers and they were sent in the mail for free. I think they sent three diapers. I just went online and cannot find the sample option but you may want to email them to see if the sample is still being offered.
Good Luck.
i agree, i bought Sam's club diapers to find out that they have a really bad chemical smell once peed in, now i need to sell them on craig's list
I bought some from BJ's and they are comparable to the Target ones in my opinion. I use them for our "daycare" diapers.
just gonna say this