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===Cartridge Razors===
[[File:Quattro Titanium Energy.jpg|thumb|300px|right|A modern safety razor with an exchangeable cartridge.]]
Exploiting the same disposable blade business model as pioneered in the early 20th century, cartridge razors were developed in the 1960's, and are now the most common form of shaving in developed countries. Although designed to have a more [[ergonomic]] shape at both the handle and head (including commonly a pivoted head which keeps the blades angled to the skin at a pre determined angle through the shaving motion) the concept is very similar to that of the double edge razor. However, here the entire head assembly (known as a cartridge) is removed and disposed of, not just the blade. Also, it is common for these cartridge heads to have multiple razor blades set into them, commonly between two and five blades.
There are also safety razors that are made of inexpensive materials that are meant to be wholly disposable. One device was invented in 1963 by American entertainer and inventor [[Paul Winchell]].<ref name="mickeynews.com">[http://www.mickeynews.com/paul-winchell-invented-the-first-disposable-razor.html Paul Winchell invented the first disposable razor.]. Mickey News (2004-01-08). Retrieved on 2012-09-14.</ref>▼
Due to the manufacturing involved and marketing potential, cartridge shaving systems are significantly more expensive to the consumer and profitable to the company than double edge razors. This is one of the reasons shaving companies such as Gillette transitioned from Double Edge shaving systems to generate and continue to promote cartridge shaving systems.
=== Disposable Safety Razors===
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== Electric razors ==
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