Direct from Tesla I’ve gone for:
Key fob (for Mrs T) but apparently it’s useful to open the boot when you’ve got shopping, etc
Roof Rack
Tesla Frunk Mat (@ £13 it’s prob the best value thing Tesla sell!)
Then from Ali Express or similar:
All weather mats
Rear vent covers (to stop things like mints or coins getting in there and never being retrieved - from evaccessories.co.uk)
Console trays (never in stock with Tesla and more choice on Ali)
Gulley covers for under the bonnet to stop leaves etc near top of front struts (lots of trees where I park)
Spoiler
Bright led boot light
Then lots of tat like valve dust caps and microfibre cloth, etc
May still get:
Extension cable from tough leads
Spigen Matt screen protector
Already had:
12v tyre inflator