www.legalzoom.com/articles/where-should-i-keep-my-last-will
www.everplans.com/articles/the-safest-and-most-practical-places-to-store-your-will
See also:
www.blaney.com/articles/signing-and-storage-of-wills-fast-forward-to-a-new-reality?ipl=1&_cldee=c2FyaWFzQG1hc3RlcnNpbnN1cmFuY2UuY29t&recipientid=contact-68a6b2ef0b04e911811600505680781c-b27ce23a161e43c1bb760c8b7ef7d4de&esid=a8a47d7c-0d1e-eb11-812f-00505680781c