Leave QDT a little smarter than when you arrived. Browse our collection of downloadable guides and other goodies to help you do things better. We offer PDFs you can download and carry with you when you’re in a knowledge pinch.

Do you know the difference between homophones and homographs, and can you recognize them when you see them? Take this quiz to find out!

It can be hard to stick to a healthy meal plan. Let Nutrition Diva help you with a meal plan that's sure to set you on the right track. 

Editing is a drag, especially when you're editing your own work. Fortunately, Grammar Girl can help. This checklist will help you find and correct the most elusive errors in your writing.

Make your meals something you look forward to with Nutrition Diva's guide to a healthy and fulfilling meal plan. 

How does your English grammar compare to everyone else's? Find out by taking Grammar Girl's quiz.

Do you know when to use 'a' and when to use 'an'? Download this quiz to test your knowledge today!