New program: Flying Blue, AF/KLM. According to
this thread in its new forum, you can get elite status miles via (aside from flying, natch) paying with an AF AmEx card linked to a Euro-denominated account in France and for buying/renewing an AF Abonnement card for flight discounts.
Another nice benefit is, once you exceed the mileage for their top elite level by a certain threshhold, additional miles count toward the following year's qualification. So, you could qualify in the second year without flying that year (trying to tie this back to the subject of the thread), though you would have to have flown a heck of a lot the year before! (If you're based in France, you get Platinum for 90K miles; miles over 150K count toward the following year's status. If you're based outside France, the figures are 70K/115K.)