iFixit.com

[Skhilled]

The premise is simple...you should be able to fix/repair things yourself, if willing or needed. They have a lot of guides on how to fix a ton of things. You can even add your own guides, if inclined.

https://www.ifixit.com/

They also have "Fix Kits" for specific devices that includes the equipment, parts and tools you'll need.

https://www.ifixit.com/Kits

[Scrubmeister]

Fixing things is a good skill to have. Tips and tricks are helpful.

[Ken.]

That site is very helpful indeed.