In the not-so-olden days of a few years ago, relatives might have sifted through stacks of documents to sort out your affairs after you died. These days, much of your presence in this world is floating around in the cloud: email, online drives, social media. Even your financial accounts are probably paperless at this point.To give your family access to your accounts after you die, you need to do some work in advance, leaving instructions in your will for everything from access to your Facebook page to how to redeem your cryptocurrency.“Most estate plans are silent on all this stuff — and that is a big problem,” said Kevin Ruth, head of wealth planning and personal trust for Boston-based Fidelity Investments.Here are a few tips on how to deal with your digital legacy:* Write it all down.Passwords and logins may be all in your head, but they are not in anybody else’s.