because - when the action have the reason
so that - when the action have the the cause
Yes, you can use "such as" at the beginning of a sentence to introduce examples. For example, "Such as apples, oranges, and bananas are common fruits."
He won't date her because he is so pygmalion.
She was known for her gregarious personality, always seeking out social gatherings and making new friends wherever she went.
I had to repaint my picture because it was so sloppy.
the judge explained that because his offence was so serious,his prison sentence was protracted.
that girl is so malicious because everyday she bullies kids.
all commercials are so boring because I think they have no point
They use them because their sentence is continuing or their thinking about what to write next or just because the sentence or story is just to long so they only give you the important parts.
the boy was so drowsy because his math class was boring
Soft ball is so humdrum because there is no point in catching the ball.
I just want to punch you so badly, because of what you did to my friend.
Because the book was so poorly written most copies were unsold.