Cleaning the glass top is not difficult at all.
Indeed, I have some tips to share.

You can actually clean your glass top by rubbing the surface with used newspaper.
Lots of people use wet tower mixed with detergent to remove dust from the glass table, but that won’t give long lasting protection to the glass. Trust me, you will be surprise using newspaper to rub on glass top will give you much better result. grand ma’s tips but always practical

Jay Chua
Publisher, PorchSwingSets.com