What are the must-have interior accessories for a new Tesla Model Y?

Congrats on the new ride! Honestly, the empty feeling is kinda the point of a Tesla, but yeah, it needs some utility. I was in the same boat with the floor mats. I didnt want to drop massive money on 3D MAXpider KAGU All-Weather Floor Mats for Model Y even tho everyone swears by them. I ended up getting the Taptes All-Weather Floor Mats for Tesla Model Y 5-Seater and I've been super happy with them. They fit perfectly and cost way less. In Seattle, you definitely need the high walls to catch the slush and mud. Dont go too cheap on the thin rubber ones tho, they slide around and look kinda trashy. As for the trays, they are basically mandatory. Without them, the center console is just a giant black hole where you lose your keys and change. I got the Spigen Center Console Organizer Tray for Tesla Model 3 and Y and it doesnt rattle at all because it has a little rubber lining inside. It makes the space actually usable for stuff you need to grab quickly while driving. Since you got a road trip coming up, definitely grab a screen protector too. I use the Spigen Tempered Glass Screen Protector Glas.tR EZ Fit for Tesla Model 3/Y and it makes the screen way less of a fingerprint magnet. It also helps with glare when the sun hits it. These few things should keep you well under your 400 dollar budget and make the car feel finished.

Re: "Congrats on the new ride! Honestly, the empty..." - im satisfied with these:

• Samsung T7 Shield 1TB Portable SSD
• Tesmanian Tesla Model Y Floor Mats Full Set T7 write speeds are perfect.

Be careful with cheap mats sliding.

• TAPTES Tesla Model Y Floor Mats: budget, kinda flimsy.
• Lasfit Tesla Model Y Floor Mats: safer, better fit. Dont let them bunch up!

Like someone mentioned, that sparse look really grows on you after the initial shock. I've had my Y for a long time now and I'm super satisfied with keeping it simple. Honestly, the minimalist vibe is one of the best parts about the car once you live with it for a while. Since you're prepping for a road trip next week, I'd look into stuff that makes the long hours more comfortable. I think I read somewhere that the roof glass can let in quite a bit of heat during the day. IIRC, a lot of people grab those clip-in mesh sunshades for the ceiling. Not 100% sure if they actually drop the cabin temp by a massive amount, but they definitely stop the sun from cooking your scalp while you're cruising down the highway. Things I actually use every day:

• Mud flaps are huge if you live in Seattle. They keep the side of the car from getting trashed by road spray.
• A little silicon liner for the cup holders makes cleaning up coffee spills way easier.
• Those little hidden storage boxes that fit under the front seats for things like first aid kits or umbrellas. About those console trays... they’re actually really handy. I was worried they would rattle around and be annoying too, but most of them come with rubber mats inside that keep everything quiet. Honestly, you dont need to spend a ton. I think the cheaper ones you find online are basically identical to the high-end versions. You could probably get everything you need for way under a hundred bucks and save the rest of that 400 for charging and snacks on your trip!