With "While You're There" users can request other users from another state buy something for them and ship it to them.

Forget that amazing souvenir on your vacation? No problem! Look for a seller in that area to pick it up for you and ship it to you!

Found that hard to find item, but its in another state? No problem! Look for a seller in that area to go grab it for you and ship it to you!

Looking to make some extra money? No problem! Offer your services as a seller in your area, purchase items for a buyer and ship it to them!