How to get the freshest data from a webpage?

When you append ?flush=1 to the URL it flushes the cache and you get the newest data.

How to make an unactive window to react to mouse scrolling

Katmouse works well - small and easy to enable or disable from the system tray.

How to delay or speed up subtitles in VideoLan (VLC) Player

You can press 'H' and 'J' while the video is running to align the subtitles backward and forward in time. The increments are in milliseconds so it can be pretty easily fine tuned.