Some useful bookmarklets written to save time. For fastest operation, name these so you can execute them from the omnibar. (I plan on extending this list in the future)
Simply returns the date and time of last time the page was modified. Most useful for referencing purposes.
Used to copy windows terminal command to clipboard for fast video download and audio conversion using youtube-dl. Perhaps an optimised version would also launch the terminal upon execution. MacOS terminal support added.
When x2 is just not fast enough, use this bookmarklet to copy the comand to clip board before pasting in the browser console for fine grain acceleration on YouTube. x2.5 default value chosen. (abandoned as superceeded by Tampermonkey scripts or chrome extensions)