How do your organise your seed packets?

A few years ago. I got this as a gift.
https://www.gardeners.com/buy/deluxe-galvanized-seed-saver-kit/8610573.html
In it, my categories are roots (onion seeds, carrots, beets, turnips, etc), brassicas (except the roots) solanaceae, tall things and grains (corn, okra, sunflowers, millet etc), legumes, curcubits, herbs, greens (except brassicas), functional flowers, decorative flowers. I have a separate box with my large quantities of seeds- buckwheat, a few beans, and an oat/pea cover crop mix.

I garden with a three year rotation in the main part of my planting area- nightshades+companions, curcubits+companions, and brassicas+companions. This grouping keeps things mostly together, and when I need to find something to fill in an empty spot, the rest is grouped by function.

Well, I suppose almost everybody is familiar with Kinder Surprise? Almost, because it is not available (actually illegal) in the US. So this idea is mostly for the folks in Europe.
I don't plant 1000's of peppers or eggplants. This year will be the most I plant, which is 100 eggplants, 200 peppers, 50 tomatoes and so on. I like variety. So I have many seed packages to store. I found out that yellow eggs inside Kinder Surprise is very convenient to store seeds. I write names of varieties on the eggs with a CD pen, put a small paper note inside. It is airtight and very compact. Kinder surprise comes with two sizes. If you have bigger seeds or need to store more seeds buy 100gr; but 20 gr is enough for me. You can store eggs in different boxes, like this box has seeds from 2017. I love chocolate so I buy chocolate anyways.
Here are some pictures,




Here is a funny video:



and why:

https://www.youtube.com/watch?v=QlYR4UJz5CY

I organize them in jars and in shoe boxes according to Plant Family.  

I have a variety of organizations schemes.