Originally Posted by
Altoid
...use those cards for where they excel best in....
Agreed, BUT don't collect completely unrelated rewards unless you will accumulate enough in each program to redeem for an award that is meaningful to you. Start by identifying your travel objectives, where do you want to go, how often, in which class of service, with what style lodging. Find the programs which will help you achieve your objectives, and don't be distracted by glittery offers from programs which are irrelevant.