I also use a single drop on the cylinder release latch screw threads. This is actually very important, as I have seen more than a few revolvers go down due to this coming loose at inopportune times.
That is it in a nutshell.
It is really pretty simple, but like anything, if you have never done it before, it looks more difficult than it really is.
Lots of little things, like good screwdrivers are important, but I am sure you know that.
After a basic cleaning, you should have a better idea reference diagnosing any potential issues.