I would also suggest that you have a "gear zone" where you keep your race gear. I like using clear Rubbermaid tubs, with a checklist taped to the top. Then when you get ready to go, you can find everything in one place. I keep mine between my wetsuits and bike zone, and always have a tri bag, race belt, spare goggles, headlamp, flip flops. I keep a bin in my car that has an extra floor pump amongst other things.
When I pick up my race packet, I toss it in the car to live until I set up the race numbers on my bike, helmet, race belt, then I put the cap in the tri bag and am good to go.