<human>: How would someone go about accomplishing this goal?
Carry a propane tank without it rolling around in your vehicle.

OPTIONS:
- Put the empty propane bottle into a bag. Hang the bag on your clothing hook. That will keep it stable instead of rolling around the car.
- Put the empty propane bottle into a milk crate. The milk crate will keep it stable instead of rolling around the car.
<bot>: Put the empty propane bottle into a milk crate. The milk crate will keep it stable instead of rolling around the car.