Why do we not use thulasi, neem, or lotus bead garlands during japam? What garland should women use during japam?

Have heard our elders saying that it is superior to maintain count with the fingers during a japam; further, it appears our elders have not used any type of garlands for japam. It appears that the best way for both males and females should keep counting with fingers during japam; this way our concentration will be better.