I take crypto for everything and it has never been a problem until now.
One client, retainer, pays monthly. He has been paying by bank transfer and I've asked him to stop for reasons I won't get into here. His answer was that he'll pay by card like a normal company or he'll find someone else, and he was not joking.
So: what does a one-client, one-invoice-a-month card payment look like if I don't want to open a merchant account? Everything I find is a storefront checkout and I don't have a storefront.