For those that still like using PayPal:
PayPal still offers you the service of generating 1 time use Credit Card numbers to use on any retailer on the net. Create your order as usual at IV, load up PayPal in a separate tab, create the CC number, then use that at IV.
I don't personally, use this as my bank offers me this same service directly. Can't say I'm sad over seeing PayPal go. They've been doing this thing for years now. Deciding what you can or can't purchase with them, regardless of what the law is, based on their own moral BS.