How to make Wi-Fi ask for password everytime?

I noticed that when accessing Internet on wireless laptop or iPhone, it doesn't ask for password to access. My question is if others come into my house, can they access the Internet? If so, please let me know if there's a way to setup the password to prevent this?

Can i get Pages (mac program) on Windows 8?

Best answer should include
-if possible where to get it from
-how to download and install it
-is it worth buying
-cost
-if you can't get it on a windows pc, then is it worth buying on my iphone or ipad?

Iphone won't turn on, freeezes and restarts?

I turned it on and it took forever on the screen with the little apple logo, then it got on the lock screen and froze there for a bit and wouldn't let me do anything, and then the apple logo came back up and it restarted itself, i plugged it into the charger and it still continues to do the same thing. But it just sits on the black screen, then a little loading circle comes up, then that freezes, and then it completely just flashes white for a second, turns back off, and then goes back to the apple logo screen and then restarts this whole process^^

Iphone won't turn on, freeezes and restarts? - 1

I turned it on and it took forever on the screen with the little apple logo, then it got on the lockscreen and froze there for a bit and wouldnt let me do anything, and then the apple logo came back up and it restarted itself, i plugged it into the charger and it still continues to do the same thing. But it just sits on the black screen, then a little loading circle comes up, then that freezes, and then it completley just flashes white for a second, turns back off, and then goes back to the apple logo screen and then restarts this whole process^^

How much money should I sell this for?

I have an iPhone 4S Otterbox, which is in pretty excellent condition. The screen protector is brand new from last week as they sent me a new one, and the silicone is about 2 or 3 months old as they sent me a new one. I clean it regularly, and there's nothing wrong with it. I just want a Lifeproof instead. How much do you think I could get for it?

Is a screen protector NEEDED?

I recently bought an iphone 4 from a friend. It had a skinomi brand protector on front and back. The front one was bubbly and smudged and had annoying little indents on it. (I think it was because you're supposed to not touch it for 24 hours after application but she couldn't lol) so I peeled it off. When I took it off the quality was much crisper and clearer. I just don't want to put one on. I read about a screen protector test and the only thing that really scratches it is sand and dirt. I have an otterbox on it so it wouldn't shatter if it were to fall. Is it really necessary?