The best plastic material is polyethylene so it's commonly used for manufacture of plastic bags. They can have various colors, and be even translucent and transparent sometimes. Plastic bag usage involves using rubbish bags. Plastic bags containing garbage are considered to be disposable as they are usually taken away with the litter inside. They present a convenient and sanitary way of handling rubbish and are widely used nowadays. Plastic rubbish bags are especially useful for wet and messy garbage such as food remains. They are also good for minimizing litter odor.

Waste containers and bins are often lined with rubbish bags. This allows keeping the bins sanitary and avoiding their contact with the garbage. After the bag is full it can be easily pulled out and closed. Plastic rubbish bags of different sizes are sold at many stores in packets of dozens and several dozens. The quality is defined by the material these bags are produced of. The use of Low Density Polyethylene results in producing soft and flexible specimens while High Density Polyethylene permits to manufacture bags with less soft texture. To the general consumer plastic bags of the largest sizes are commonly available.

Plastic shopping bag is another variant o plastic bag usage. Plastic shopping bags replaced paper bags used for bagging groceries at grocery stores or supermarkets. Cheap disposable plastic bags became widely spread in the 1980s though they have some defects in comparison with paper bags. Plastic bags lack stiffness and their handles have a tendency to lose elasticity and break under the weight of contents. At the same time plastic bags are more firm than paper bags in wet condition for example in rain. Plastic bags can be reused as litter bags.

There are some other types of plastic bag usage. Smaller bags are available for storing food and are also used for containing other items. They were put into circulation some years ago and a company-producer called them baggies. Since that time this name has become used for small bags. Another brand used in connection with food bags is Ziploc; it got its name after zipper-like sealing mechanism on one edge of the bag. Such simple mechanisms are common on food plastic bags. Storage bags are usually made transparent so that the user can easily see what is inside while there is no need to make rubbish bags see-through. Simple, thin, soft, small transparent plastic bags are available free of charge in supermarkets for bagging various products such as fruits, vegetables or biscuits.

Due to economy and convenience plastic bags of different sizes are widely used for commercial packaging applications. Small parts or goods that can be easily lost are contained in small clear plastic bags. These bags are often sealed or stapled till they are opened by the customer. Plastic lining are used in cardboard boxes especially for keeping powder or granular material.

The greatest imperfection of plastic bags is that they become litter after being used. These bags are not biodegradable, though it's quite easy to design degradable bags and manufactures have tried to produce perfect versions.

Plastic bag usage has become a real challenge for many people. Competitions and discussions take place with the main aim of inventing new ways of using plastic bags. Too bad they don't spend more time figuring out what to do with all that garbage once it's been thrown out.