The frequency of cleaning quartz stone surfaces depends on their usage and exposure to potential staining agents. However, here are some general guidelines: 

1. Daily Cleaning: For high-use areas like kitchen countertops, it's a good practice to clean them daily, or even after each use, to remove food particles, liquid spills, and other debris that can lead to staining. 

2. Weekly Deep Cleaning: Consider a deeper cleaning routine once a week, especially for areas that may accumulate more dirt or grime over time. This could involve using a gentle stone cleaner and a soft cloth or sponge to clean the surface thoroughly. 

3. Bi-weekly or Monthly for Low-Traffic Areas: If the quartz surfaces are in areas with less foot traffic, such as a bathroom countertop that doesn't see daily use, bi-weekly or monthly deep cleaning may suffice. 

4. After Major Use or Spills: Always clean up any major spills or incidents as soon as possible to prevent staining or damage to the quartz surface. 

5. Seasonal Maintenance: Depending on the climate and season, you might find that you need to clean more frequently during certain times of the year. For example, in a kitchen where cooking activities increase during the holidays, you might need to clean more often. 

Remember, the goal is to keep the surface free from dirt, stains, and residues that could potentially damage the quartz or make it look dull over time. Regular maintenance helps to preserve the beauty and longevity of your quartz stone surfaces.