If you prefer your Gmail inbox elegant and simple, you can disable inbox tabs in reasonably simple a manner. All messages previously found only on tabs will appear under Inbox then.
Disable Inbox Tabs in Gmail
To turn off tabs in your Gmail inbox and see all messages in one list:
- Click + next to the rightmost tab in your Gmail inbox.
- Make sure all tabs except Primary are not checked under Select tabs to enable.
- Click Save.
(Updated May 2013)