I ladies I am about to purchase a part time in gold giant hardware, but it's shoulder strap has gone missing. This will be my 1st balenciaga... I will see myself carry the bag like a top handle bag. But, is the strap crucial ? A deal breaker? Is there any tip that I should be aware of? I was kinda imaging that the strap might come in handy if I need to unzip my bag, hanging on the shoulder maybe easier to juggle ?