When running a Puppy frugal install in pupmode 13.
There will be a save icon on the desktop.
Writing to the save is only needed when settings change or you add software to Puppy.
You can turn off auto save, so you can control when writes to the save are made.
In Puppy Event Manager-> Save Session
If you set Save Interval to "0" it does not auto save.
Select "ask to save at shutdown"
The save is not written to, unless you select to do it.
To save:
1. select the desktop save icon (Not available in all Puppy installs)
2. At shutdown, when asked to save, select save.
This way it only writes to the save when really needed.
Most of the time you need no save update at shutdown.
This is very good for limiting the number of writes to a save on a USB flash drive.
Note:
Settings in the web browser, for remembering web sites or history, can really add to data stored in the save.
So, adjust as you wish in the browsers settings.
This is also an easy way to check out new settings and programs.
If something does not work correctly, simply shutdown or reboot and not save.
On restart, Puppy is back to running clean, before the changes.