Pack fresh lemon balm into a Mason jar. Fill the jar with cleaning vinegar. Let the mixture sit and infuse for two weeks.
After two weeks, strain the lemon balm. Do it twice or until there are no small bits that may clog the spray bottle.
Dilute the vinegar lemon balm concentrate with water. Use 1 part lemon balm vinegar and 4 parts water for an all-purpose cleaner. Use equal parts lemon balm vinegar and water for a strong cleanser for tough applications.