It doesn't matter how you record good articles you find, just that you do. If you are more comfortable keeping your useful articles in a folder or a notebook, then do that. If you like the convenience of Refworks or another citation manager, use it. The important thing is that you are able to find your sources again and don't need to search for them again.
Keep track of where you searched and what your search string was. This way you don't end up doing the same search over and can move on to more effective searches.
Some databases will give you a permanent link to the search, so you can easily go back to the search.
If you want to use a citation manager, but aren't very familiar with them, that's easily fixed. We have guides for most of the popular citation managers, and if you have any further questions, just contact us!