In any given scenario, these freedoms must apply to whatever code we plan to make use of, or lead others to make use of. For instance, consider a program A which automatically launches a program B to handle some cases. If we plan to distribute A as it stands, that implies users will need B, so we need to judge whether both A and B are free. However, if we plan to modify A so that it doesn't use B, only A needs to be free; B is not pertinent to that plan.
The obvious choice of Office tools if you are a firm believer in open source, LibreOffice was a fork from the original OpenOffice years ago (itself an offshoot of StarOffice). Inside are word processor, spreadsheet, and presentations programs, a vector graphics editor, a math formula editor, and a database. It's a little more awkward to use than the desktop version of Microsoft Office, but you can't beat the price. Grab the LibreOffice Viewer app for Android to look at files.
Your freelance website should be more than just a glorified portfolio and contact information. Every page on it should be optimized to help your leads convert. Use your words wisely by highlighting the value of your services on the site. Include prominent calls-to-action encouraging site visitors to join your mailing list, set up a consultation, or make a purchase.
Public domain software: the copyright has expired, the work was not copyrighted (released without copyright notice before 1988), or the author has released the software onto the public domain with a waiver statement (in countries where this is possible). Since public-domain software lacks copyright protection, it may be freely incorporated into any work, whether proprietary or free. The FSF recommends the CC0 public domain dedication for this purpose.
The Debian project is a strong supporter of free software. Since many different licenses are used on software, a set of guidelines, the Debian Free Software Guidelines (DFSG) were developed to come up with a reasonable definition of what constitutes free software. Only software that complies with the DFSG is allowed in the main distribution of Debian.
Free sales leads are found through your basic lead generation tactics. You can work to generate new leads through social media, by creating new content or even by working to improve the visibility of your site on search engines. Working to optimize your site and continue to perfect it you can improve your SEO and find more interested incoming sales prospects.
Put the PrtScn (Print Screen) button to actual use. LightShot is a tiny utility that takes over that button. Push it and you can pick what part of the screen to turn into a screenshot, plus annotate with tools like text and arrows. It's also available for leading web browsers to capture what's on a page. Once captured, you get choices to save to a file, the clipboard, the cloud, social networks, or to just search for similar shots in Google.
The best thing about some of these companies is that you don't have to "Like" them on Facebook, send messages on Twitter, or complete surveys. With the companies I've listed first, simply sign in, input your mailing information, and wait for the free sample to show up in your mail). It will take less than 15 minutes sign up and up to six weeks for samples to arrive.