Yes you can. There are also screen protectors that make it hard or impossible to read your screen at certain vantage points. That way, no one can walk by and try to look at what you're doing online. It can be helpful when using a laptop in a public place or at home for various reasons.
It also can protect your laptop screen from dirty, and reduce the strain caused by the screen. You can get more information about screen from Topons.
Putting a mirror screen protector over a privacy screen protector will only add bulk to the phone screen. Instead, you can choose a screen protector that gives enough protection in all aspects. You can try the one that I use. I use a screen protector from gadgetshieldz. It protects my screen without adding any bulk to it and also self heals scratches.
nope
install the webcam and place it on top of the monitor
Well, depending on what you plan to use your laptop for, the touch screen can be or might not be worth the extra cost. If you plan on using the touch screen a lot, then yes, you should consider investing you money.
No
Yes, all laptop computers are built with LCD screens (as well as many flatscreen televisions).
It's up to you to choose, it's better to get a screen protector since scratches would mess up the touch screen and make it harder to use, but you dont have to get 1, just better to do.
You can put a small thin screen protector on the screen. This will prevent from fingerprints on the lcd screen. Smaller netbooks make "bump" cases which is a small case that goes around it, in case you are "bumped" and accidently drop the machine. Designed to give it some padding. .
You can use screen recording software like Jing, Jing is free and very easy to use.
Change the brightness of the screen sometimes works.
Yes. 3M makes a 17 inch screen protector that can be used on either a desktop or a notebook. It is dual purpose, as it protects the screen from scratches and dust and also conceals confidential information on the screen.
Use a soft cloth and wipe the water off. Don't use a sponge or you might scratch the screen. Hope this helps!