I did something stupid and had to cancel my CC, so, until my new one arrives, I'm living of bank payments to my Steam Wallet, which takes 3 days to register (it also has a 50 cent tax to do so, so I can't just keep adding money in the amount I need, otherwise I'd be losing money), so I can't really help anyone.
Also, there's an extra 6% tax I have to pay when making CC purchases on Steam now (on top of whatever else you'd have to pay me on paypal, I usually do a 10% blanket tax), so Unless I had massive amounts of Steam Wallet Funds (which I don't), I Wouldn't be able to help much....
I might be able to skip the 6% tax once my new card shows up, or at least make it smaller, and still be able to buy things on the spot, but I won't be able to test it until them. I should have an answer for the Winter Sale though.