Thx for bounties! Good jewelry.
The complexity associated with holding different coins securely dissuades me from holding too many coins, even if they were received as bounties. Best to stick to a few coins and convert the remaining as soon as you receive them.
Complexity? Really? Most of the bounty campaigns are currently rewarding you with ERC-20 tokens, which typically can be stored on MEW. If you add to that a Nano Ledger S for maximum security all the complexity you have to go through is to remember the single Ethereum address where all your token has been sent to. As for the balance of your holdings, you just have to bookmark your address on Etherscan.