Best Mac maintenance App

I did try a search but could never type in the correct antispam password. I am new to OS X. When working with windows I was very used to performing maintenance on my computer. Now i know people say os x requires no maintenance but i know that is not entirely true. The following link contains a list of popular mac utilities.

http://mac.sixfiles.com/dbase/system-utilities/system-maintenance

Which is the best one? What do i need? What should i do to my computer to keep it clean and quick on a regular basis? If this is a repost please provide a link for me. I want to make sure this baby works as good as it does now every day.

Thanks!

i use onyx and swear by it. many others here also use mainmenu.

both are available for free in numerous places (google something like osx onyx).

i think the main differences are these:
onyx can get you into more trouble if you don't know what you're doing.
i believe mainmenu is accessible from your menubar.

both are fine for cleaning caches and logfiles, which is pretty much the extent of recurring maintenance.

I personally like MainMenu the best, I found it easier to use.

I'm down with both. MainMenu gets used more often than the other on my machine, but Onyx, in addition to maintenance, gives you quite a bit of customization for the Finder and your Mac in general.

I've longed used Onyx and MainMenu, but lately I've been using IceClean. IC uses only the built-in Unix tools to do its maintenance tasks. In actuality, I doubt Onyx does any differently, but then they don't actually tout that either.

Another vote for OnyX. I have been using it since I started with Macs over two years ago now.

Onyx here.....not onl;y does it do what it's supposed to do and advertised to do, it's also FREE.......gotta love freebees that actually provide what the promises are.