Could you give me some advice to organize Package Explorer?
I have many closed projects and sometimes I have a lot of close projects between the projects that I have to work on it.
There are some plugin or anything to organize projects in folders or something similar?
Sounds like you are looking for working sets?
Eclipse working sets (version for Eclipse 3.6, Helios)
Eclipse working sets (version for current Eclipse release 4.2, Juno)