Try utilizing space and only use separate posts if content in one post exceeds 5-6 images. Do not use separate posts for writing a couple of words or 1-2 sentences. If an error is made in a previous post, use the "EDIT Post" button at the base of the post to make changes. To quote someone's post or question, press the "Reply with Quote". To upload multiple images in a single post, simply click on the "Insert Image" button, click on "Select Files" in the box that appears and while holding control (CTRL), click on all the images you want to upload to that post and finally select Upload.
Regarding the clear plastic, Meguiars PlastX would have easily cleaned the clear plastic. I'm guessing you dont have that so the next best option is to use a white toothpaste ( the normal fluoride colgate toothpaste will work ). Put a pea sized blob onto your applicator and work it into the plastic. Let it haze for a few minutes and wipe it away with a mf cloth. If the plastic has scratches, you need to remove those by wet sanding using a 1000-2000 grit paper. You must have a polish like Meguiars PlastX to remove the final haze left by wet sanding. Toothpaste will not work in that case.