Feel free to make yourself a cup of tea or coffee right now because you’ll be investing an hour or so in today’s post. We’ve published our last icons round-up six months ago, and since then we’ve collected over 50 new free high quality icon sets that you can use for your projects. While most of the listed freebies may be used for commercial projects as well, some of them may not. However, you could use all of them in your private projects. If the set is available for private use only, it’s clearly indicated in the brackets next to the title of the set.