A useful feature when you are working on multiple devices is to keep as session log for every session. You can then easilly see what you have typed or provide evidence.
To configure this for every session:
1) Open Putty
2) Select the Default Settings and press Load
3) Navigate to Session > Logging
4) Set the Log file name in a format that makes sence to you. You can see mine
5) Navigate back to the sessions, making sure Default Settings is still highlighted and then press Save