One of the main advantages of my grandma’s trick is its cost-effectiveness. A can of shaving cream is relatively inexpensive and can be used multiple times for this purpose, making it a budget-friendly alternative to electrical dehumidifiers, which can be costly to purchase and operate.
Moreover, this method requires no electricity, making it an eco-friendly option. By reducing reliance on electric appliances, you can decrease your home’s energy consumption and carbon footprint, all while keeping your windows clear.

12. When This Hack Isn’t Enough And You Need A Bigger Fix

While the shaving cream trick is highly effective for minor condensation issues, it may not be sufficient for more severe cases caused by structural problems or extremely high humidity levels. If you find that condensation persists despite repeated applications, it may be necessary to look into more permanent solutions.
Upgrading to double or triple-pane windows, improving insulation, or installing a whole-house ventilation system can provide long-term relief from condensation. Consulting with a professional can help identify the underlying causes and recommend appropriate measures to address them.