I have over 200 apps, but these are some that I use often.
1) ES File Explorer - manage all your files
2) Pro Weather Alert - used for weather alerts only. (Can keep running in the background without effecting the battery.)
3) PowerAMP Pro - manage and listen to all MP3/4 music
4) MoneyWise Pro - manage expenses and budgets
5) Kitchen Timer - set up to 3 timers at once
6) Volume Control - have up to 3 presets profiles for all vol. controls for notifications, ringer, system, media, alarm and in-call.
7) Timeriffic - set different profiles when to turn things on and off, lower/raise vol. for different days of the week and different times.
8) ColorNotes - taking notes, creating check list, etc.
9) SMS Backup+ - automatically back up all your text to your email.
10) CoPilot Live V9 - for off-line GPS navigation. (No data required.)
11) CamScanner Full - scan documents to PDF, print copies or fax
12) Quickoffice Pro - view/create/edit - Word, Excel, PDF and Power Point (Also, has spell check now.)
13) Google Drive - share documents between devices
14) Quick App Manager - keeps cache files clean w/o input from the user
15) Receiver - use for Citrix to access your work desktop
16) HP ePrint Home&Biz - for wifi printing. (Only works with HP printers.)
17) Adobe reader
18) AppSaver - Can backup the APK files for apps, to SD card. (Need to be able to install from unknown sources within phone settings.)
19) FlightView Free - track flights when traveling.
20) Point Inside - an inside mall map of all stores. (Works very well. make sure to download the map for off line use.)
21) Amazon Kindle, Play Books, Play Magazines - read your favorite books and magazines from Google and Amazon.
22) Merriam-Webster Dictionary - I'm not a good speller, so this is of use to me. (Its for off line use.)
23) Calorific - keep track of calorie intake.
24) CardioTrainer - exercise app to keep up with workouts
25) Any Bank app you have your accts. with. (Nothing like depositing checks, checking balances and making transfers.)
26) Pandora - you create your stations to hear the music you like. (Can play from PC as well.)