1 year in working for ground/fixed wing transport. Here is what I've learned for gear.
a few cheap carabineers, they are great for holding your drips, and early on you will forget a few of them at the receiving facility when you leave. Most companies will carry them with them to give to the ER ICU nurses and staff, its a great marketing tool.
Don't buy the tacticool SWAT/MILSPEC boots. Some people will rock Merrels, or even Nikes. Under Armour makes great boots, there are some great ones out there, but get ready to spend some money.
Get a watch that's comfortable and easy to read, esp at night. Guys like to go out and buy the 300 dollar Navy Seal Luminoxx, but I use a 20 dollar PUMA watch off Amazon
, with a digital display, and a good glow at night.
You can never have enough PENS. Also, keep a role of SILK TAPE on you at all times, and when SHTF, just tear some off, tape it to you leg, and start writing. Also makes it easy to ghetto label drip bags.
Phone charger. It will always go dead at the WRONG time. Buy an extra and put it in your flight suit.
I keep an extra shirt, shorts, and socks in my cubby, along with soap and deodorant.
Little bit of cash for the drink machine when you land after a flight in 100 degree heat.
Decent pair of $20 sunglasses. Decent pair of earplugs if your working Rotor.
I have a laminated sheet of critical care meds that I keep in my pocket for quick reference, along with a list of phone numbers.