Google Voice Global Spam Filtering
Sadly, spam is no longer confined to the email inbox. Robocalls can be a major time-consuming distraction. But just as Gmail's spam filter quite effectively winnows out a lot of junk mail, Google Voice (Google's universal call forwarding/voicemail service) offers tools for discarding these unwanted calls before they ring through. Primary among them is Global Spam Filtering, which immediately discards calls coming from numbers Google has identified as spam sources. Activate it by clicking on Calls in Google Voice's settings.
Smart Rescheduler for Google Calendar
If you need to reschedule a meeting you've created in Google Calendar, you could look through participants' shared calendars to see when everyone is freeor you could enable Smart Rescheduler in Google Calendar Labs (which you access from the GCal settings menu), and let Google do the searching for you. Once enabled, Smart Rescheduler appears as a widget on the right side of the Calendar window; to use it, highlight the event you wish to reschedule, and click the Find a New Time link. You'll get a list of alternative times, each with a Schedule This button to click for the time you choose.
Google Forms, a capable and easy-to-use survey tool, is a free Google Drive add-on you can download at the Chrome Web Store (which also has free and paid business apps from third-party vendors). Create your survey from question templates (choosing between types such as multiple choice, checkbox, scale, or text answers), then either post it in a Google+ Hangout or distribute it via email. Recipients submit the completed form by clicking a button at the end. The survey itself and the responses are all automatically stored on your Google Drive, and you can view the results in either summary form (with auto-generated graphical aides) or in a spreadsheet.
In the era of the smartphone, having a website created for desktop browsers may not be enough. GoMo by Google is a site for businesses that want to investigate creating a mobile-friendly version of their site, or at least that want to test how accessible their site is to mobile users. There's a tool that shows what your site looks like on a smartphone and that rates its mobile-worthiness by asking a couple of questionsfor example, whether you can click links with your thumb. If nothing else, GoMo makes you give some thought to these issuesand if you want to act, it has links to developers that can help you out or do the work for you.
Gmail Priority Inbox
Gmail puts yellow arrows next to messages it believes, based on Google algorithms, you'll find important, and you can modify its choices manually (by clicking on the arrows) to help teach it what really matters to you. The visual cues save you time in sifting through your mailbox, but you can speed things up even further with Gmail's Priority Inbox feature. Just click on Inbox in the left nav bar (to bring up the inbox-style menu) and choose Priority Inbox, which will group at the top of your inbox all unread messages with yellow arrows. If you want to go back to sorting mail according to when it arrived, pick Classic from the Inbox style menu.
Two-step verification for Google accounts
If news about hackers gaining access to password-protected data has made you nervous (or even if it hasn't), consider beefing up your Google account security by activating Google's two-step verification for account logins. This adds a second password (in addition to the usual password entry) for logins: a code Google sends to your cell phone or landline, or that you store on paper in your wallet (in case you're not near a phone). After an initial setup, you can waive the requirement on trusted computers and mobile devices for 30 daysand you can always revoke waivers from your security settings. Read a detailed explanation and setup guide here.