I think it's somewhat worthy to spend on these products like issue can be there like ink got soaked up from the notebook at long run page became weak or some rat or something eat it
then all these metal and titanium come
You can have 2 or 3 backups stored in different locations and let your memory be the 4th. I
referprefer using paper. If you want the paper to be waterproof, you can get a glue and a nylon and laminate it yourself at home. Pencil is hard to fade while those student pen are also hard to fade. Also using student notebook for it is hard to fade. It will take
hundreds of years and not fade.
But best is that we can memorize our seed phrase but the issue like we can forget them but if we are spillting our money into a lot of wallet then definitely one more issue to remembering so much phrases
Memorizing seed phrase is highly not recommended but it can be the last resort. I mean make sure you have your offline backup and not fully
dependbon memorize itrely on your memory.