You probably have a few dozen duplicate files, chiefly MP3 and photos in the Google Drive. This https://softgateon.herokuapp.com/drivecleaner/ is a handy tool that scans selected directories and finds any duplicate files inside them. The app works with all sorts of files and can also be configured to scan sub-folders within a given directory. It supports IE10+, Chrome, Firefox… even provides a connection with Google Drive. You can directly scan duplicate files with your drive.
For Chrome users, here is it as a Chrome extension: https://chrome.google.com/webstore/detail/duplicate-file-finder-cle/bkefnddmfngncidpmibnleniddiopejg
When you browse presentations on Slideshare.net, you sometimes see a Download button that can only download the slide for offline view via Slideshare only if the author has enabled downloading. Well that doesn’t work for me. To download presentations as ppt or google slides, go to the link below and copy paste the url of the presentation you want.
It will ask you to verify that you’re not a bot by typing a security code and Boom! Click on “Download in new tab” to get the file.