creditcardbillmileagedrivenyourvehicle’smilespergallon.Includegasotherhomesteadmachines.Diesel:Basecreditcardbills,deliveryrecordsestimatedusage.PG&Eelectricity:GetyourkilowatthoursfromyourPG&Ebills.propanecompanykeepsyoudon’thavecopiesyourinvoices.wellstackedpilewoodmeasuringAirtravel:Youcanfindairmilecalculatorfirewood...