First of all, it takes a huge pair of balls to do this. I know there are some clueless investors out there, that wants to dip their toes into Crypto currencies, but they are too scared, because they do not know how to secure these coins. 
My advice will be to go for some hardware wallet, which makes things a lot less difficult.
The Ledger Nano supports most popular Alt coins, so you should be covered.
My advice will be to go for some hardware wallet, which makes things a lot less difficult.
The Ledger Nano supports most popular Alt coins, so you should be covered.
As I have already said, a hardware wallet is not good enough.
Think of it like this. I set up my client with a hardware wallet. At the end of February, I convert Jan & Feb profits to BTC. So currently it will be about 73.5BTC.
The client gets phished/scammed/ wrote his seed words somewhere stupid.
BOOM that's 73BTC lost. Brilliant.