Where will we store our DEAL tokens after we buy them?
You can store your Deal tokens in any ethereum wallet since DEAL tokens are standard erc-20 tokens.
You can use myetherwallet.That is the easiest, but not the safest way.
The safest way would be a hardware wallet, which I would recommend - is it possible to store deal on it?
I believe it should be, any erc-20 can be stored if supported, team will surely help.