online free samples

I was wondering if anyone has ordered any free samples of the internet whilst living with another person (I.e. roommates, parents...) and have successfully hid the diapers from them. Right now I'm thinking of ordering some samples online but I don't know if the packaging will be really obvious and how do I get past my roommate...

They should come in a plain box but will probably have the company name on the shipping label you can always get a PO box and have them shipped there just get the smallest box and they will card you when the package is there