Do you store your bitcoins online or on a wallet on your computer, perhaps cold storage?
Yes, I stored my bitcoin in different wallets, I have bitcoin in my Electrum wallet on my computer desktop, then I also have in multibit, and also in my android phone which is mycelium, and I have small amount of bitcoin in exchange platform amounting 0.01BTC each every week.
you have a very good idea sir, in case some of your online wallet will down and never comeback you will have another that can be the cause of your income, you have a reserve money in other options