It depends on where you are located. Saving your money in your bank is an easy option but not very lucrative.
In fact, I have read an article about banks who are going to charge negative interest rate on your savings account. Which is ridiculous of course.
I would choose for spreaded investments. Leave 70% of your money in your bank, and invest 15% in Bitcoin and the other 15% in something like a Bitcoin startup.
It always makes sense to invest in small amounts in various accounts considering the inflation. Investing money in lands is also a very profitable option. The prices of lands have shot up but one needs to do some study and needs to be enterprising enough to see to it that the outcome of the investment is benefiting.