The garbage bag is designed reasonably, easy to carry, and can be easily lifted, making it very convenient for both taking out garbage and throwing away waste. The capacity of a portable garbage bag is usually larger than that of a regular garbage bag, which can accommodate more garbage and reduce the frequency of bag replacement, saving time and effort.

Many citizens use plastic bags as garbage bags, but many countries and regions have banned or restricted the use of plastic bags. The San Francisco City Council passed a bill prohibiting retailers such as supermarkets and pharmacies from using plastic bags. In cities such as Los Angeles, the government has launched plastic bag recycling campaigns. Some places in countries such as Canada, Australia, and Brazil have also introduced regulations prohibiting plastic shopping bags or paid use.