Recently, the Big G released a new feature for Google Drive: Add-ons. Anyone familiar with Google's Chrome Browser already knows a thing or two about add-ons. The simple "what's what" of add-ons is that they let you add apps or extensions to your program so that they can do even more. Google even has a web store for the little buggers, allowing you to install them with a single click. Now, they've come to Drive's Docs and Sheets apps (Google's cloud-based answer to Microsoft's Word and Excel). But what does this mean for you? What add-ons might actually be useful to you?
Calculator
Quick! What's 2+2? You probably got that one pretty fast. But what's 26533+5847? 5594x2495992? 69689/543? You might not have gotten those ones as fast. Anything more than simple math probably requires you to break out the old calculator. The Calculator add-on for Docs lets you do just that. It does everything it needs to do.
Template Gallery
A well-typed resume looks nice. A well-typed resume on a template looks much nicer. Offering templates for such things as Course Schedules, Exercise Logs, and Budget Planners, the Template Gallery add-on for Docs has a pre-made template available for just about any thing you need to type. Struggling with making a table to make a calendar? There's a template for that. Sign-up sheet? Template. Meal Planner? You know what I'm about to say.
Thesaurus
Mayhap you wish to augment your repertoire of words, whether elegant or colloquial Or maybe you just want to stop using the word "neat" over and over again so you don't sound so repetitive (dandy is a neat word for "neat"). The Thesaurus add-on does everything it needs to do: Synonyms and Antonyms. Nothing superfluous or verbose.