A move _away_ from paper, to government signed crypto certs and witness logs is the answer.

Then we just need to standardize on A5 as a standard for bills mailed out, since it'll fit inside of everyone's filing cabinets already. A5 for taxes would also be nicer too.

Then get school supplies made in A5 size (easier for kids to carry), and finally after a silent transition period where there's less and less in the US Letter size, we can relegate PC Load Letter to the Office Space movie.