For now, I simply trade them on an exchange an convert it to fiat. But trust me, maybe in 10 years time, they'll be more use case for bitcoin. BTW, there are online stores that actually accept bitcoin as a means of payment (
see here). So you don't really have to make use of it in a physical store. However, it's only a matter of time.
if you notice, bitcoin is not planning to improve or add to the use cases. People prefer the asset class than the means of exchange for goods and that's the reason for the rise in Hodling even among new traders. Other coins that fork from bitcoin tried to improve the use but they could not win the market with the use case and they didnt get adoption they expect.