What if you're holding several different cryptos that aren't supported on the Ledger Nano S. If I'm invested in 10 currencies long-term how do I store them?
Many Apps and Sites with multiple wallets. Like Coinomi Apss, and for website myetherwallet is the best. this is what I use today to store my altcoins and bitcoins. And for monitoring I installed Blockfolio here you will see every up and down of bitcoins and other altcoins so I make my job easier.