Where can I find an X-Acto blade?

You can cut horizontally or vertically. Often it can help to finish the last row up to the ceiling with a horizontal cut.

You can tell if it's spinning in the wrong direction if it's difficult to cut, there's lots of smoke, or fire. To fix, switch off and disconnect the saw, use...

You can do either. If you're learning you should start out on the ground and transition to the air. Build up your leg strength to make it easier.

It depends on your skill level. You'll want to start out slow and work your way up to going fast.

No, it doesn't. However, do you have an Xbox 360? if so, try there and then it should work, provided you downloaded it.

Yes. Having a concealed carry license does not get you past the state laws concerning knives. Most states have laws concerning the length of blade you are allowed to carry...

Yes it's a possible replacement. Try using different colored blades.

It most likely is durable, but it mainly depends on the width and flexibility of the metallic ruler.

Stop using so much muscle. Let the saw do the work while you power it back and forth, not down!