This is actually really cool. I don't use freezer boxes at all, but a map system like that would work equally well for, say, keeping track of what's in TEM grid

This is actually really cool. I don't use freezer boxes at all, but a map system like that would work equally well for, say, keeping track of what's in TEM grid holders[1] which I do use. This is what I meant when I said in my original comment that I think this problem is a difficult one, because so many different scientists are using so many different types of inventory. But I'm sure it's possible, and I wish you luck :) [1] e.g. http://scienceservices.eu/media/catalog/product/cache/1/image/1600x/0d0c09f1c8bdb43b879ca3fe7208b7e2/g/7/g71137_0_dsc_0748_1.jpg http://scienceservices.eu/media/catalog/product/cache/1/imag...