Any business transactions you participate in today should be given your most intense concentration. Make sure you get the correct change at the drugstore. Re-read a contract before signing on the dotted line. Save that receipt from the big box store. Take nothing for granted. No one is necessarily trying to trick you or cheat you, but you need to start protecting yourself more conscientiously. It doesn't take any more effort, and will save you a lot of money and headaches down the line.