Most everyone with 2WD pickups around here have 4 bags of sand in the beds. Put them just to the side of the wheel wells. If you do get stuck, they can be cut open and you can use the sand to aid with traction.
If you go to Lowe's or Home Depot, you will be able to either have someone from the store load them for you or just wheel them out to the truck and ask a younger person to help you.
Good luck!