coinbase is one of the best electronic wallets in the world that. It is also the kind of purse I use today and used to trade. It also has the advantage that when you talk to a person who also uses a coinbase wallet, it will be free of transaction fees. 

If you have a big budget you can trade coin by earning from this you can go to big trading floors like polo or bittrex ... you can buy coin cheap compared to bitcoin and sell it. At high prices you can make a profit from it. You can also invest in a website to get interest