If you ever felt the need of adding contacts in Gmail or Google Contacts & then delete them at a later date, then this post will show you how to do it.

Select any you'd like to delete, then click the More drop-down menu and press Delete Contact. Et voilà. Alternatively, access contacts outside of Gmail with Google's Contact Manager.

Android contacts are Gmail contacts. You can't delete some off your phone, just hide them. Make groups in Gmail and tell your contact manager to only display the group you want.

Make your phone do some of the heavy lifting. Start by installing an app that lets you merge or delete redundant contacts. For iOS, we like Cleanup Duplicate Contacts__($1)__. For Android, Go ...