If you continually have a lot of tasks to do but find it hard keeping track of them Conqu may be able to help you. Conqu is a powerful task management app for Android. Adding tasks are very easy and if you want to add more details you can do so. You can set the priority of them, tag them with colours, date for when they should be done and more.
The UI for the app is very nice and makes it easy managing your tasks, no complicated menu's to confuse you.
The app also supports Android tablets, taking advantage of the screen estate.