Go HERE and sign up for one or all of the samples at WalMart Wire. They have samples of Always Infinity, Huggies Organic Diaper (Newborn size only), Aveeno Nourish Hair Care, and more.
Megan has some more freebies HERE.
Part of being frugal is keeping watch for freebies and entering giveaways. Sometimes with freebies your are fortunate enough to get a coupon sent with the freebie. And if you don't use the freebie, you can always give it to a friend or donate it!