Some really smart folks have got me on the Google Apps train this year and it has been a life changing experience. Seriously, I love Dropbox because I've spent so much time there and have everything nicely organised, but Google Drive and Sheets/Document apps make life so much easier when you are out-and-about or sharing documents with other peeps.
To be honest, most of my week is out-and-about so it made heaps of sense to start moving in this direction and be able to quickly make changes and share from my phone. Massive lifehack.
Currently, I have Google organised with Office apps because I use them similarly and the office lens can be really handy for scanning a document and converting to text. Not 100% awesome just yet though.