I'll second Package Disabler, worth every penny, and using Google calendar.
Must have apps for me were Google messenger & Google keyboard instead of the stock Samsung offerings. Nova launcher of you want to move away from touchwiz.
Enjoy and let us know what you think when you've had a good play! I can link you to the wireless quick charger from eBay if you like, it's an official Samsung product.
Thank buddy. Amazon would be better as I have prime.
How does Google Messenger work? Is it cross platform?