A DROID THAT FOLLOWS YOU & CARRIES STUFF!
Sorry to disagree with Obi Wan Kenobi, but these ARE the droids you are looking for-- to haul around your groceries. Say hello to Gita.
The Gita Mobile Carrier is designed to carry over 40 pounds of stuff and then follow you around like a loyal dog-- all hands free. Watch!
Here's a more indepth video explaining Gita.
Now if they can just program in a beeping language and feisty attitude, I'd fly off and fight the Empire with one. ~Enjoy! ~Brian