Questions for Tesla owners

I have a few questions for everyone, I live in Alberta so think harsh winters and summers. If you have product recommendations for anything please share them as every bit helps!!

1. Thoughts on adding door seals. I see people say the seals help with noise reduction but is that all it does? Some say helps with dust and water others say the dust and water problem doesn’t even affect them.

2. Radiator covers. Are they really worth it or just a waste?

3. How do you clean your white/black Tesla seats? I’m getting white ones and want to know how to clean and protect them.

4. Those who live in areas with heavy rain or harsh winters, do you charge your cars outside? Does the rain/snow affect the charger like short circuit or something?

5. Is replacing the usb worth it? I won’t be leaving my car unattended for more than 24 hrs so I don’t think I would need extra storage.