Carpet is actually definitely an especially good option if your work truck sports a tonneau cover or a topper spend. Most carpet liners are weatherproof, but a wet liner can hold moisture across the bed and initiate damage to your bed. However, some new carpet covers are made of closed cell foam like life preservers and dry very rapidly. A carpet covering is a non-skid surface and that is certainly just what your hauling requires. Plus carpet is cushion for knees should the loading or hauling involves some crawling around to the truck bed frame. Also carpeting is perfect for cushioning big, messy hauling jobs.
Finally, explore the voltage considering that car is running. Turn the headlights and heater fan due to their special vehicle maximum creating. Voltage should not be below 13.9 Volts; ideally it should be in reduced 14 Volt range. By simply car fails this test you should look into further testing or replacing the alternator.