Gnome Boxes is an easy way to quickly try out other Linux distributions, for example the current or next release of Debian (Unofficial non-free images including firmware packages).
If you see a message during a slow or hanging shutdown (press ESC to see messages) about a stop job is running for CUPS, wait 90 seconds ... it might be due to an old print job in the system.
There are many ways to make quiet MP3 files louder ("Normalize"), but the easiest is by far using Audacity, since you can process multiple files at once (also known as batch processing) with the Macro tool:
Save paper by printing on both sides of the paper (duplex). If your printer is able to print on both sides and is installed to support CUPS, you can define default setting such as changing paper size from Letter to A4 and duplex printing at http://localhost:631/.
QGIS is an open source program which allows you to: "edit, visualise, analyse and publish geospatial information on Windows, Mac, Linux, BSD and mobile devices. For your desktop, server, in your web browser and as developer libraries."
If for some reason the default font looks like Times New Roman, even thought the default fron is set to Liberation Sans, you might have to re-set the default font:
Setting up a Linux installation can be done in many different ways, but preserving your settings and bookmarks is nice, so you don't have to redo them after a re-installation. This set-up uses another partition (in the example, called "documents") to store your photos, documents, settings for installed programs and your mail program, and connecting to them via symlinks.
Sometimes, the font size on a web site is too small, for example at https://www.retsinformation.dk/ where the font-size is 11.2 pixel. You can override the text size locally, via the userContent.css file.
Also, highlighting links can be useful, to allow tabbing between them.
