Different businesses entities that I’m involved with - so we typically get a couple new biz cards for each entity each year. (Lol bookkeepers hate that though)

It’s worked out pretty nicely and we’ve been able to visit quite a few countries over the years with minimal airfare expense. We definitely could do more if we churned as frequently as you sound like you’re doing, that’s a good way to rack up a ton of points if you can keep it all organized! (I think right now I’ve got like 11 cards between entities and personal so it’s about all I can manage)