I personally use a spreadsheet and only track what I pull from boxes, bags or other BWR's. I do not track pulls from CWR's as I feel those would horribly skew my numbers and ruin the math beyond the cost-efficiency of box hunting. I'd love to see examples of your guys' spreadsheets or databases you use to track your finds. BTW, feel free to use my spreadsheet for yourselves, I like it, and think it works pretty well. Here's a link to what I use cleared of data excepting examples and uploaded to Google Docs. You should be able to add data as you please to fool around and see how the calculations work, as well as copy the formulas I created. Have fun, number nerds. https://docs.google.com/spreadsheet/ccc?key=0Av23H06MYBv3dEhYUU1UNG5HdW12N2RSNkdWdkdKNnc
