How do I securely store different CryptoCurrencies? I may be seen as a newcomer and and a non-tech-savy person for asking this, but after serveral hours combing the internet, I now have to admit my defeat and ask the question instead of just finding the answer myself. 

For long I have been wanting to invest in more "exotic" crypto currencies. What is the most secure way to do long-time investments in crypto currency? 

I don't like the idea of having my currency lying at a broker, and ideally I would like to buy a currency, transfer it to a cold wallet, and then let the wallet and backups thereof sit offline until I believe it's time for selling the currency again. 

Is this possible to do for anything else than BitCoins and Etherium?
Short answer: Yes, it is possible. But depends on every coin. The majority of the top coins has his own wallet where your funds can't be stolen.

First of all, taking into account that cryptocurrencies are a developing technology I wouldn't use the word "securely". But if you want to minimize the risk, I recommend you to diversify your portfolio, for example:


50% BTC
20% ETH
10% LTC
10% XMR
5% IOTA
5% MAID


That would be pretty much my choice, you can make your own.

In any case, for a long-term investment I recommend you to research the core technology of each coin. And of course guard the funds on your own wallet.

If you want to invest on really new cryptocurrencies that doesn't have a wallet yet, you'll have to let the money on the exchange until a wallet is launched. There's no other way.