Considering the life cycle of products - this can REDUCE the amount of resources used in the future.
Built in Obsolescene - Products which are design to break after a period of time. This increases the amount of resources we need, as we have to constantly replace what breaks.
Energy and waste of production process - We can REDUCE the amount the energy we need, by RETHINKING designs. For example an energy saving lighbulb.
Materials Waste - Reducing the amount of packaging, for example plastic bags. This will reduce the amount of plastic being required to be produced.
Products that can be reused for either the same purpose or a new purpose - for examples, reusing Spray bottles, or refilling water bottles. This means less are needed to be produced for consumer purposes. Many people already reuse plastic bags.
Products that can be ADAPTED to suit an alternative use- this could be using a plastic bottle as a bird feeder.
Materials that can be recycled - Primary, Secondary, Tertiary - Primary recycling is where you use the product as what it is. A second hand product. For example buying something of Ebay. Secondary is adapting a product slightly and reusing it. For example renitting a jumper. Teritary is changing the chemical properites of a product, for example melting down plastic and reusing it for another use.
Products that use recycled materials - By using products that use recycled materials it reduces the pressure on using new materials. This makes recycling more common!
Disassembly - reprocessing materials for use in new products - This is a long process, and is hard because many materials can't be recycled. This is one of the reasons why recycling in many ways isn't economicly viable - it doesn't work on all materials.
Issues relating to sustainable design - Refuse is generally a term which means to reject certain ideas and concepts used in the design of new products.
Materials we should refuse to use - we should refuse materials which are damaging to the enviroment, and also ones which can be recycled (theroset-plastics).