Simple way is to number your totes. Take a pic of the number then take pics of everything in the tote. Download the pics and you can print out sheets with all the pics or if you have a laptop just have the pics there and you can just browse your pics to find the tote it's in. We actually glued clear sheet protectors onto our totes and put the print out sheets in the protectors so we can remember what goes in the tote when putting away. Now that we have a laptop, I'll just look up the pic by name on the laptop and find the folder it's in (folders are named by tote number).