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.
Got image files of entire disks you would like to read, but don't want to over-write your existing drives or go buy a bunch of blank DVDs just to read the files? This software lets you mount the image (ISO, BIN, or CCD format) with a double click, as if it was a readable drive all by itself. In fact, you can load up to eight virtual drives simultaneously.
Most freelancers put calls-to-action on their sites asking prospects to set up a consultation. This is a great strategy, unless your prospects aren’t quite sure if they want to purchase your services yet. Add a lead capture form on your site where people can sign up to get more information. Then you get their contact information and can continue to market to them.