Which are great Catch Plugin for WordPress in order to improve site loading speed & Reduce latency?

I want to optimize site loading speed and for that I want to use some catching plugins. Can you name any which you have tried and tested?

Comments

[Tyler Hall]

Cache* - This plugin seems to work ok in my experience. I hope you get many other suggestions!

[Adam Greenough]

If you have LiteSpeed installed on your server (many shared hosting does too) then LiteSpeed Cache plugin is unbeatable as it directly interfaces with it.