Diabo, this is a great summary. Thanks for doing that for us. Also, what am I? I am loyal to Delta but find the information in your OP very beneficial for my many other accounts. I am also a frequent flier but not on every airline. I'm glad I didn't let the thread title make me pass this one by. I've got it bookmarked.

Again, thanks

Although it's been a while since I used points.com, I remember converting 30 US miles to 1 DL mile. This re-sets the expiration clock on both accounts.

Also, I use car rentals to re-set the expiration clock on my orphan accounts. But base miles are a rip-off since most agencies charge a FF mile surcharge for domestic airline programs. So a FF bonus is needed to make the surcharge worth the $ just to save orphan miles.

Q4 2010 Car Rental Bonus Promos!