Well, if you mean that you are willing to keep the value of your income stable then I do believe that Fiat is the best option to avoid the crypto volatility risk. I generally try to spend my 50% of funds as I believe that the movement is a growth and hence we should give first preference to use cryptocurrencies in as it is form. On the other hand, bearing the risk of market volatility is always better than parking funds anywhere in any insecure coin.