You will receive up to 13 free samples on a first come, first serve basis. What freebies are offered are based on the personal preference answers you provide.
These always fly off the shelves fast, so hop to it, order a box of freebies, and make sure two of your friends are around to laugh at you while doing so.
Remember, not everyone will qualify for every single sample. It depends on how you answer the brief questions about your shopping habits, household members, whether they own a pet, etc. Even though I'm late and have no kids, I was still offered 5 freebies after answering two short pages worth of questions.
In some years, after selecting my freebies, they offered (and I declined) some magazine and eBook trials.