Lots and lots of interesting apps can be installed easily, and across distros, with Snapcraft:
Category: Applications
Cross-Linux Package Management: Snapcraft
article #1184, updated 1513 days ago

End-of-life of common Microsoft products
article #1055, updated 1844 days ago
Recently a Microsoft page on the subject went missing, and the replacement doesn’t seem to work in any browser. Here’s a regularly updated one from ZDNet with just Windows and Office:
http://www.zdnet.com/article/when-will-microsoft-pull-the-plug-on-your-version-of-windows-or-office/

A Great Alternative to Visio
article #1035, updated 1928 days ago
This one is very good:
http://lucidchart.com

Print-to-PDF using Ghostscript
article #959, updated 2207 days ago
This page appears a bit outdated, but it should still work:

New web browser
article #765, updated 2754 days ago
Looking rather interesting so far; it is very multiplatform:

Adobe Flash Player and Adobe Reader direct downloads
article #695, updated 2943 days ago
Here’s Flash Player:
http://www.adobe.com/products/flashplayer/distribution3.html
and here’s Reader:

"Too Many Different Cell Formats" in Excel
article #640, updated 3073 days ago
Microsoft says:
http://support.microsoft.com/kb/213904
that this is due to accumulating cell format IDs over time, when Excel documents have been used and updated over and over again. Microsoft says that this can be prevented in new Excel files by keeping Excel up to date, but does not give an automatic solution this way. Instead, when the problem is seen, we have to run a utility on the Excel file throwing the error. I found a very small binary in the SkyDrive account referred-to in the article above, called XLCleaner; this works quite well. I did not choose any of the checkboxes in my testing, they look like they might alter spreadsheet contents, and they did not appear to be necessary.