Originally posted by BillMorrow:
The best thing I learned here this year was a combination of the US Silver>Gold promo last spring along with the double status miles promo at the same time. I became Gold with US and earned 29K status miles for $420 over a 5 day period!
The next best thing I heard about is ongoing new Delta Optima card promo will net me about 80,000 Delta miles for using a different Amex card for about 6 months.