Hear me out guys.
Paper can be really fragile, and all it takes is a tear or water spill or defacing to deny you access to your BTC forever.
So, you should make a second copy of your seed phrase that is identical to the first, and store it on a different place from the first seed so that they both cannot go down together except in extreme circumstances like a natural disaster.
Personally, I have two backups in two different locations. In each location I maintain:
2x: {
1 piece of paper with my seed phrase written upon it, in black ink.
I have put the paper in a plastic card sleeve.
I have put the sleeve in a plastic zip bag.
}
So I have in total 4 backups actually, but placed in two different places.
So, 2 places guard me against physical disaster on the specific place and 2 backups in each place guard me against physical damage on a specific piece of paper (which is highly unlikely).
Thoughts:
1. I know my system is ultra redundant, but I sleep well at night.
2. I maintain paper backups, so putting 2 of the aforementioned packages in a single place, requires less space than using other possible backup media.