For people that are still using those fiat cards is a practical way to get some sats. For my wife, using the company high volume of purchasing stuff online, is a nice way to get some sats.

Disclaimer: the company knows about this and they agreed to. They don't care that my wife gets the sats as long the purchasing flow and their money are not affected. They also use BTC but in a small volume and sporadically.

There's another one that is rounding up your purchases and convert the change into sats. Is like a slow DCA with spare change.