I've recently bought a chest freezer which doesn't really have much in it at the moment. I have a massive food shop being delivered tomorrow and much of it will end up in the freezer.
I just chuck everything in and rummage through it to find something to cook.
bhg481 'Really' A printed laminated list with names and dates that you cross off as you use an item!!!. I bet you have individual serial numbers printed on every pair of knickers with a record of the date they were bought and last worn ;-)
I have a notebook with a magnetic back and it's stuck on the front of the freezer. I have a list of everything that's in the freezer and cross items off when I use them. If only the rest of my life was as well organised as my freezer (sigh)