I like to commit quite frequently (and even randomly) when I am working on some code, because if I screw up somewhere I can always roll back my changes.
However, when I decide to push all the changes to the master repository, I don't like people to see all the random commits, because some of them are really meaningless to them, and it makes the change tree unnecessarily long.
How do I "consolidate" all my local commits before I push?
You can combine your commits by rebase and squashing the ones you dont need.
Refere this: http://gitready.com/advanced/2009/02/10/squashing-commits-with-rebase.html