What have you learnt in the course of your career that would be really useful for colleagues here on the Learning and Skills Group to know about? It could be totally tactical ('Always begin a public presentation with a full set of lungs') or utterly strategic ("Never begin an L&D plan without first knowing which executive gives you complete support.")
The only thing it has to be is short.
To start off, here's my offering: Never say 'yes' to a training request without first asking 'why?'.
Engage with your IT department. When producing a business case for any new learning technologies always include the wider benefits to the organisation and customers rather than just focusing on the technolgy itself.