It is useful to keep a list your Stata packages in case you need to reinstall or replicate your environment somewhere else. For this you can use adolist
net install adolist, from(http://fmwww.bc.edu/RePEc/bocode/a)
To create a list of your packages
adolist store mystatapacks_latest.pkl
To install the packages from the list
adolist install mystatapacks_latest.pkl
You can update an existing list by
adolist update mystatapacks_latest.pkl
Here is my latest mystatapacks_latest.pkl in case you want to have some useful packges installed.