Smart TaskBar - Monumental wouldn't trade it for anything I had Swipepad a while back but this is more useful while having downsides of being less fancy.
ES File Explorer File Manager - A good app it does everything its suspose to and more then I need it to the scrolling hangs a bit ever since I dipped and dabbed with some settings but otherwise ok.
Stotic Home - I use this as a home launcher in conjunction with Smart Taskbar it's low memory and has a clean slate approach.
File Manager - I switch back and forth between ES and this it's upside is window tabs, the down is it lacks a app backup.
System Tuner - I have no clue really but check it out.
Power Amp - Low CPU, 32 Band EQ, Themes, good developer feedback.
Boat Browser - Default internet brower love it.