One of the best ways to remember, is to write it down. Usualy the best way is to have an notebook for you to write your thoughts.
Sharing your writings can help other employees, to learn new things or get interest in other.
Simple tool as an mobile app, or app like google docs, can be used to keep all writings of employees. To write shortcuts, best ways to work on some tasks and other suggestions and hacks. It is an easy way to communicate and organize, share knowledge and have more options in your workflow.
How would you stage or advertise your hack?
There is a lot of app that can offer this hack to work. It depends on employees and how thay will organize this document. It will need organized topics where all the hacks can be stored and be easily find. There could be a voting process, so the top hacks will be visible in the first.