There are many applications that automatically start when you turn on your device; many of these you don't use or need, they just consume your valuable resources. Autorun Killer lets you manage applications that start up when you boot your device. Donate version even tries to prevent their restart (and is ad-free).

ROOT REQUIRED!

AutoKiller fine tunes android's inner memory manager to keep your device fast and smooth.

Features:
-process manager
-advanced mode
-alternate preset while sleep
-presets (with shortcuts)
-settings reapply on boot
-statistics

check home page for details!

APKoptic is an application manager that enables you to launch or uninstall applications. You can also create a backup of the application on SD card as well as restore or install the APK from SD card.

AndTask is an android task management software,It can be manually or automatically optimize memory and end the processes,It contains an the best memory management software for freeing memory,can make your phone run smoothly when you run many apps,can view CPU and disable the apps.
安安任务管理是一款android任务管理软件，可通过手动或自动优化内存和结束进程，它内嵌目前最好的内存释放内核，可以让你的手机在打开许多应用依能顺畅运行，还能查看CPU占用和禁用软件等。
More http://code.google.com/p/iandbox/
https://slideme.org/user/18222/applications/18222

AndroPic gives you a fast and easy way to browse and organize your pictures on your SD card, create custom albums or just view your photos.

The ultimate file manager for root users, similar to the rootexplorer,It is a support system-level view document management software,also supports file operations and sharing.

安安文件管理是一款支持浏览系统级的文件管理软件，同时支持文件操作和分享。
More http://code.google.com/p/andbox/
https://www.slideme.org/user/18222/applications/18222

AndExplorer is a file manager for Android devices. It allows browsing files and folders stored on device and sdcard. It can sort by name, size and date. Copy/Paste, rename, delete, create folder, send files as email attachment features are available. It is able to uncompress ZIP, GZIP and TAR files too. It can be called from another application through Intent facilities (open file/folder, uncompress).

Beautiful but simple voice recorder.

Record everything you like with this handy app.
The AL Voice Recorder includes a file browser to browse and play all your audio files and a recorder to make new audio records.