Touch screen devices are amazing, no doubt about it.  But they have one major flaw: Giant touch screens attract smudges and scratches.  It's just a fact of life.  And screen protectors are expensive!  That is, unless you know this little trick...

When you think about it, those expensive screen protectors aren't much more than thin plastic sheets.  But wait...isn't there a super-cheap version of that exact same thing that's usually used for something else?

Why, yes!  It's called plastic wrap!