With Lotus Notes, you can be very productive if you know how to store your information. In my case, I have a library database (with a number of categories) which always open. I use it to jot down any information I may encounter during my workday.
Recently, I came across on a very smart Notes application Share documents
on Alan Lepofsky Notes blog. Basically, it will let you send any DB link from notes databases to a designated database.
In my case, I am now using it to send important emails, the ones that I may otherwise tag, to this library database.
It is very efficient and will really prove useful.
Sharing documents between Notes databases