I'm not too fond of this buy now - pay later stuff. I mean, don't get me wrong, it's great for when you try a new online store and you're not sure if you'll get your order or what it will be like. Or if you really really need something and will be able to afford it soon. Then it feels okay to not pay until after.
But mindlessly, always paying later? NOPE. Been there, done that. After a while I lost track and almost ended up not being able to afford paying for the stuff and I've always been pretty good at keeping track of my money. It was scary.