If you haven't figured this out yet, I'm a little bit OCD.
I have 2 raised beds that are 4x8 feet and those are square foot gardens. For the uninitiated, you put your crops on a grid and each square foot is a different crop (for the most part, some need more space). It's an OCD gardener's ultimate high. The fun part is keeping up with what you want to plant where. Since each bed has a worm feeding station, I have 31 squares in each bed to keep track of.
The first picture is my 2 beds. I made the grid with bamboo poles (NOT live bamboo) and vinyl covered wire. The Walmart garden center had them for a really good price last summer and I got a bunch for vining crops and such-like. I put them in place after I finished top dressing the beds with compost and mulch. The red buckets are my worm feeding stations. The lids keep critters out of them. The second picture is how I organize my seeds. They are in alphabetical order by crop, then each crop is alphabetized by variety (so all of the basils are together). The third picture is one of my planting grids. I use Seedtime as my garden planner and still have stuff in the one from The Old Farmer's Almanac. I made the grids in Canva, each one is 4 rows of 8 columns of squares. I had them printed on 11x17 (ledger size) paper and laminated at Office Depot. I have another one with 4 x 6 grids to keep track of what's in the soil blocks in my seeding trays.
I used a wet erase marker to write down the crops I needed to get seeded into the beds this morning and put the seed packets into a small bucket to take out with me. Once I used it, I put the packet at the back of the bucket behind an empty packet to keep track of what I had seeded already. Once I open a seed packet, I fold the top over and put it into an empty seed packet I ordered off of Amazon. It has a zipper seal and is lined so that moisture won't get into the seeds. The organizer (middle picture) sits on the shelf in the closet of my office to keep it dark and at room temperature.
Now that I have them seeded, I just need to go into my organizer and check them off as done and file them back into the organizer bin.
When I'm ready to do more crops, I'll just use a different colored marker to write down which ones are up. I also made a note of how many of each crop to put in the square. The seed packet has the info for how deep to put the seed. But to be honest, for the greens and herbs, I'm not as picky on these as you might think. I mostly look to make sure it doesn't need to be surface sown and to keep from putting it too deep. Other than that, I estimate when I'm planting.