Since cloth and leather handbags in no way protect your precious belongings it is wiser to go for water proof bags. You can experiment with bright plastic totes and transparent carry-alls.
Flip Flops and Thongs
Replace your high heels and leather shoes with rubber flip flops and thongs. Along with being easy on the pocket, they allow your feet to breath and do not get spoiled by water. They are the most practical option in the rainy season.