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.
Why do you post outdated stuff?
These are posts from 2017, at that time way more merchants accepted bitcoin than now.
Steam and Microsoft stopped accepting it for years. The same with subway and DISH.
This times are over. Fees are 14-20 USD. BTC is not bitcoin anymore, due to many reasons.
Right now, it is really not a smart move to pay using bitcoin for small purchases as it will require you expensive fees to go thru. Better convert your crypto to fiat and use the fiat instead. For the time being, it is better to hold your satoshis and treat it as investment. Let us just wait for the time when fees go down and maybe if there will be more merchants using the lightning network.