If you're traveling to Latin America or the Caribbean, don't pack more than two bags, and don't let them be overweight. People traveling to and from these countries have a propensity to pack heavily this time of year. And so every year at this time of year the airlines impose stringent restrictions, though you'll have to do some Googling on the airlines' sites to find mention of the policy. No worries, cougars only need one coat anyway.

Airlines re-imposing strict baggage limits to Latin America and the Caribbean [Upgrade: Travel Better]