When you're in Jakarta, there's no need to worry where to get foods or beverages. There are plenty of push-carts type of food vendors providing you with cheap excellent meals. But don't question about hygienes. This all on wheels food service only have one bucket of water to wash the dining utensils (bowls, forks and spoons) after being used by the customers. But the convenience is ... you do not need to walk so far to have lunch/dinner ... the food will come to you right in front of your houses / offices, day and night and you can use your own plates or food bowls if you're worried about the cleanliness of their utensils.
~~Soto Mie picture grabbed from Herti's Kitchen Gallery