A couple days ago my Twitter screen scraper stopped working in Liferea. I hadn't changed anything, and the script's output at the command-line still looked okay to my inspection, but Liferea started giving the message
When using multiple terminals on different hosts, it can sometimes be confusing to remember which host you are on. The hostname appears in the command prompt, but it's easy to skim past that if you are not paying attention.
One solution that works pretty well for me is recoloring the prompt based on what host I am on. This is in fact why I researched how to get 256 colors terminals working in the first place: in order to have enough colors to be able to make a good choice for each host I use frequently.