They used to save their pocket money in order to buy something in return. Nowadays, the pious occasion is restricted to just phone calls, e-mails, couriers, and e-greetings. The significance has been blurred with the advent of internet, cellphones and iPhones.
This Bhaiya Dooj, we hope each sister gets to meet her brothers and celebrate this day with sincerity and devotion. Happy Bhaiya Dooj!