just mark them with tape or something, red yellow green or whatever, put the green in your bag, tape a show, come home, take it out and charge it, put the yellow in your bag...then red...if you cant figure out that logic then surrender your drivers license to the DOT and your rig to ME!
KISS=Keep It Simple Stupid.....no need for a silly spreadsheet, unless you want to do my itemized deductions and my returns while you are at it. heh