iCloud Users That Also Use Other Cloud Services

I'm just curious - if you are an iCloud user, do you use any other cloud services to supplement iCloud?

Here is what I use -

I use iCloud for my main email address, calendar, notes, reminders and I also use iCloud Documents to sync my Pages, Numbers and PDF files between my Mac, iPhone and iPad. I use PhotoStream to share photos between my iPhone and iPad, but I do not use it to capture the photos on my Mac (I don't like Mac iPhoto).

I use DropBox to backup a number of other files. I also use DropBox to upload my pictures from my iPhone to my Mac.

I have a backup Gmail account to use when I don't want people to use my main iCloud address.

I use Google Picasa to share photos with my friends and I basically have every photo I've taken since 2000 stored on it.

I have also been using iCloud Photo Journals to share some recent photos. Waiting to see if this service improves any before moving to it completely from Picasa.

I use Google Music to store a lot of my music collection (I use it instead of iTunes Match because it is free). I keep very few music files stored on my iPhone, but use the Google Music Player to listen to them.

Anyone else out there use a combination of cloud services to supplement iCloud?