Maintaining Optimal Electrical Connections

We all know that, over time, oxidation can wreak havoc on electrical connections.

To remedy this, I recently ordered DeToxic D100L (general cleaning - copper surfaces, etc.) and G100L (for gold surfaces).  Do you have experience with using these solutions to clean, restore, improve electrical connections? 

Please indicate - name of solution / High voltage / Low voltage / audible results / insights?

Thanks in advance for sharing your experiences... I should have some experiences to share in a few weeks.