And don't turn it on, even to check it, until after the 2 to 3 week period!
Don't trust what you read here in regard to what welding filters may work. What little you save may cost you the camera or your eyesight.
I bought Scott's first 5 Digital Photography books at Costco years ago. I loved them, and still use them. But that's me and my level of photography.
A lens reversing ring would probably work on your big camera.
Take a look at the Black Rapid Traditional strap. I really like mine for comfort and convenience.
It's their property. Ask first.
I don't know that B&W is the same as B+W! Might not be.
You used to be able to buy "archival" glassine sleeves. That and store in a cool dry location.
Probably targeting grandparents, aunts, uncles, etc. who would buy one to make that kind of poster for a kids party.
You'll get a lot of recommendations. But try this. Look at what "all the big boys are using". Then put into play that most of them have to make their living with their computer. It's generally not a hobby or sideline. Then take a look at the Apple Silicon Chip models. They're made by the company that has the highest customer satisfaction ratings.
Fixed means that the aperture doesn't very with the focal length.
I agree with you about the "worthless" part. I've yet to find one that didn't end up referring me to a live "agent", some of whom I could understand and who could actually help.
Just like ebay, you'll find extremely high prices from some sources, in hope that someone will buy and pay!
I'd absolutely not use Windex. It contains many chemicals that will harm the specialized coatings on the camera lens. Use windex for window glass.