How do people manage their own code base?

How do people manage their own code base?
Title, you have to express your opinions, write things for a long time, everyone has their own set of common code snippets of management, how do you manage your own code?

Speak freely.

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Write all the functions into a file.
To adjust the class to a uniform format save separately
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Learn
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What has been used is found directly in the previous project file, and some algorithms and functions that are not in the project are saved in the same folder in a separate TXT file.
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Method One, written in a manual (online), note that web-style best (or CHM), Web-compliant applications (can talk to each other, know their own shortcomings)

Method Two, write a framework, open source, do the project yourself handy, the development of high efficiency, do not have to check the manual all day, because your framework has integrated the necessary basic applications


--I mix the above two points into one point, with a well-written framework to develop a Web manual (not only can be consulted, but also to collect and integrate content), not yet completed
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Like Zend, NetBeans has an integrated code snippet function, you can put the useful code in the code snippet, it is necessary to drag out the use of the good.
Zend also has a code snippet that provides online access to foreign experts.

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