Most of the designers who loves to work and get their designing task to be done swiftly and without risking the superiority of their output. The trick is to scout for free design pack out there that you can use and immediately drag to your canvas and make some little adjustment to fulfill the needs.
Flat design is still the hottest style right now. As a result, there are plenty of fantastic flat design resources available.
Baianat recently released free flat style icon sets for use in your personal and commercial projects.