There are many to-do apps available on the Play Store. If you are still looking for a minimalist and robust app, look at Swipes. It has now come to Android Play Store with the same ease of use as it was on the iPhone app.
You can quickly add an item to your to-do list. You can then add tags to your reminders, schedule them in a variety of ways and filter them easily. It is all in one list, a good combination and a happy middle-ground between complex lists and a very minimal interface with a very light footprint.
The item remains on your to-do list till such time you dispose it off. The best part is that it is FREE ! Happy Swiping !
Try it and let me know if you like it. (www.swipesapp.com)