One item I invested in before I left my job was Global Entry. I was on the fence about it for a year. I wasn’t sure if it was worth my time and effort to spend $100. Global Entry is card that gets Americans a “front of the line” pass when coming from international flights and a “front of the line” pass going through security when flying domestically.
The application process is similar to a job security clearance screening. You will have to give information on your job, you previous addresses, income and other similar information. I had most of it already since I had to have it for my defense contracting job, so it wasn’t that inconvenient. If approved, the $100 fee is valid for 5 years. I was approved within a month and then kept checking the interview website for openings for a few days before I got my appointment. Within another week of the interview I got my shiny ID card.