Boxcar
You set your e-mail program to forward a copy to Boxcar. Then, Boxcar sends you a push notice with the subject of the e-mail. Meaning: You can set your e-mail program to check 'Manually' which means it only checks when you open it.
Result: You save battery life (since the e-mail program isn't connected all the time) AND you get notices of new e-mails faster! What's not to love?
You can also have Boxcar send you notices about Twitter. So go ahead and just use the free 'Twitter for iPhone.' Once paired with Boxcar, it's fantastic.
E-Mail
Speaking of e-mail, what do you use? I can give advice on the best way to set it up, but it depends on what service you use.
Dropbox !!!!! <- A must!!!
1)
Get a dropbox account
2) Download the dropbox software for your computer
3) Download the Dropbox app for your iPhone.
Now you have a folder on your computer that is always synced with a folder on your iPhone. Need to take a PDF with you? (Like, hotel reservations, maybe?) Drop it in that folder on your computer and suddenly it's on your iPhone!
A MUST HAVE!
Photogene
It's not free like the Photoshop app, but I love Photogene for editing pictures. It does more and was worth the price.
Remote
An Apple-made app that lets you control your computer's iTunes or an Apple TV over Wifi. Pretty handy sometimes.
Flickr, Facebook, Wordpress, Fandango, etc...
If you use something online, it probably has its own app. Get it.
myWireless
From AT&T. So you can see how many minutes you've used this month.
Mark the Spot
From AT&T. So you can report bad spots in their service.
Urbanspoon
Already mentioned, but it needs to be said again. This is for finding
real restaurants. If you want an Applebees or McDonalds don't worry about an app. Just type it into Google maps and you'll find them quickly that way. Urbanspoon is for finding unique places you don't know the name of. Also, don't just use it to search. Create an account online and mark your favorite places in the app. It creates a handy list of places you like.
Friend:
Remember that awesome place we ate at in Tampa Bay 3 years ago? My cousin is going...do you remember the name?
Me:
Well, actually, I can give you the address and phone number if you like! <-- I've done this!
NYTimes
One of the best newspaper apps.
Web Bookmarks
You can add web bookmarks to the home screen. This can turn a website into an 'app' of sorts. If you use something all the time, put it out on your homescreen.