Based on your question after my post, I am assuming that you were not able to see the chat responses.
Below is what I had sent you in regards XXXXX XXXXX question.
Hello, my name is XXXXX XXXXX I am happy to help on this question today.
You are asking about "common substances" which I take to mean more household items.
In science classes, the most common substance added to water to increase surface tension would be soap (whether in liquid or solid form).
This would be more measurable as compared to other items like salt (NACl), for instance, which would also have some minor increase in surface tension.
What is important is that it would have to be a surfactant (something that does not readily dissolve in water) - soap is an example of that - soap does not really dissolve and collects at the top of the water which increases the surface tension.
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