Hello again
I am sorry, but I don't get the wallet thing.
With Jaxx, for example (i've seen the interview) I could i change Dash into and then move them to my account without passing through a "normal" exchange? Or, even if I leave them in the wallet (way too many) how do I spend them?
Pardon me, I am so noob

Cheers
Jaxx,Coinomi, and Exodus just allow transfers between different crytos(not fiat) plus offer safer storage of your funds. You will still need a fiat converter to get from bitcoin to fiat. Circle, Coinbase, Gemini can convert BTC to fiat in the US. Others have mentioned alternatives for you for Euros.
You can also use a gift card service like gyft.com and transfer BTC to gift cards that you can spend.