Root your phone...

* Find a cool theme you like for your phone

Jorte Calendar - the best and most flexible calendar app.

Vlingo (not necessary, but I think it works pretty well for voice commands)

Beautiful widgets - best clock/weather/toggle widgets

Mototorch - Flashlight, morse code, ect

Google analytics widget - pageviews/daily visitors on my screen

Pandora

Skype

Kik Messenger - why pay for text messages...

Opera mini - dont use the stock browser

Juice defender

Scientific calculator

Camera 360

Google Nav

Barcode scanner

Stopwatch

Dial 0 - app to give you direct numbers to companies, so you are not waiting at a machine.

Launcher pro - resizeable widgets, better home screen, ect

Adfree - removes all ads so you dont see them on your phone and in apps

Airsync - broadcast music from my computer to stuff through doubletwist

APKinstaller - to install apks...

Audiomanager - good widget to control different volume levels

Better terminal - if you want to do cool stuff with your phone like theme it, ect

busybox

Bump

Cardstar - to keep my loyalty cards

Dropbox

Facebook

Twitter

K-9 mail

Logmein

Mint

Paypal

Quickoffice

Root explorer

Setcpu

Soundhound - need to recognize songs on the go..

Springpad

Titanium pro

Wheres my droid - text a secret word to have your phone scream at you when you lose it.

Youtube

Wireless Tether

Zedge - ringtones and wallpaper

A good game

A keyboard you like to use - smart keyboard, uber, ect.

Jefit Pro - if you work out

wow thanks very much for the comprehensive list! I've installed many of those apps and am liking them very much!

No problem. I also use Shopkick. They have some nice exclusive coupons once in a while, but not too often.

FaceCash - https://www.facecash.com / https://market.android.com/details?id=com.think.facecash

Even if you can't use it to make payments right away (we're working on getting more merchants set up), you can still use it to consolidate all the plastic cards you typically carry around in your wallet, which is pretty useful.

I read the FAQ, how would i use it to consolidate credit cards ? The only way I would see that as useful is if all merchants would accept payment through facecash, and so im wondering how do vendors accept payments through this, if they aren't using your service ?

Apps that I use 99% of the time are CardioTrainer(running tracking with support for BT heart monitor), TweetCaster(The best twitter client bar none), Pandora and setCpu for overclocking with profiles setup for different battery levels.

Oh yeah, Im using it on HTC Evo with sprint and Google Voice integration is nothing short of amazing. I can pickup phone calls via my Gmail when Im on my laptop and I didnt have to change or port my phone number

cardiotrainer appears great even though I already have an oregon hrm I think I will use it. Thanks

If you use any sort of limited/paid data plan, I'd recommend installing 3G Watchdog (https://market.android.com/details?id=net.rgruet.android.g3w...). It gives you instant access to usage statistics, and also extrapolates current usage towards your current (monthly or whatever) quota.

Folks,

Thanks for all the answers, I am already installing some of the apps mentioned here! You guys rocks!

Astrid - popular task/TODO list

KeePassDroid - if you KeePass for password management . . .

<shameless-self-promotion> Song Alarm - bare-bones alarm clock app for playing songs or sound recordings </shameless-self-promotion>

Andreddit - If you read reddit . . .

HN

first root your phone ( its easy don't worry ) - superuser, Juice Defender, setCPU, chrome to phone, google goggles, google voice, Unified Remote ( for media center pc), Link2SD, Wireless Tether, Titanium Backup, Quick Settings, Power Control Widget, Audio Galaxy ( plays your music off of network drives), Qik ( live video ), Twidoryd, Dropbox, Springpad ( along with chrome extension ) , google docs, and of course google navigation and gmail.

Use 1.TuneIn Radio best ever radio application, 2.DeviceDoctor product to know your android device better 3.Dawg social networking application

If you rooted your phone, I recommend DroidWall, Advanced Task Killer and Autostarts so you can keep your system in good shape.

silencr - Ringer/Sound profiles on a schedule. https://market.android.com/details?id=com.shynnergy.silencr

Pimping my own product, but I use it everyday!

* AWDLauncher - Great UI with loads of features and customizations

* Wikidroid - wikipedia client

* Skype

Fail Log - Break bad habits (worked for me)

Hacker News

Reddit is Fun

GO SMS

Speedx 3D Free - Nice game

Swiftkey - My favourite keyboard

IMDB

Dictionary.com app