An investment, but I love that it tells you if you are brushing too hard and has an app that you can use to see where you brush and if you miss any spots in your mouth. I also love that it has a 2 minute timer so you know you have brushed long enough...
Oral-B iO Series 9 Electric Toothbrush - Rose
More gentle way to whitening your teeth. A pre-rinse before brushing your teeth.
Natural Dentist Whitening Rinse - Clean Mint (2)
I am sensitive to any mouthwash that has alcohol so this is a great alternative.