How to clear space in your Google for free

Popular Science 

Make full use of the 15GB you get in Gmail, Photos, and Drive for free. Breakthroughs, discoveries, and DIY tips sent six days a week. If Google keeps bothering you to pay for cloud storage, it's not just you. You only get a relatively measly 15GB of storage free of charge with a Google account, and you have to split that across Gmail, Google Photos, and Google Drive. That 15GB can fill up quickly, but it doesn't have to.