More flight room

When flying on an open seating airline like southwest, bring a bunch of items a baby would need on a flight. Things like a stuffed animal, a small blanket, etc. Place them out on the seat next to you no one will want to sit there and you can have extra space.

Running a cab company

Start a cab company.  When you pick up people with foreign accents automatically take them to the wrong location and then just say that you misheard them.  Then deliver them to the correct location and still charge the full total.

This one brought to you in part by the shady cab system in London.

Flight hacks

When flying always carry a set of earbuds even if you don't have an mp3 player. That way if you really don't want to talk to the person next to you, you can just put them in.  They will either think you are listening to music or crazy enough that they shouldn't speak with you.

Credit Card Companies

Create a credit card company specifically designed to appeal to traveling customers.  Then lock down accounts when people leave the state or country where they reside.  Have your help center designed to immediately unlock the card so that you can claim a very high percentage of successful help center calls.

Thank you very much traveling credit card.  I'm glad I got you in the first place.