I use my iPad all day long-literally. I use it as an alarm clock since my 'real' clock's snooze feature broke. On the clock display I have current weather and temperature so I know how to dress for work.
I check Flipboard to get my facebook and news fix before work, and have enable news pushes so I know if something is going on globally.
TuneIn Radio gets me up to date on local news while USA Today, CNN, and npr keep me up to speed with national and global info. I use wi-fi most but have 3G so I check my Data Usage especially with the new tiered data plans.
I currently use Quickoffice, Dropbox, and Pentultimate for work apps. For reminders, I'm trialing Next! and Sorted for to-do lists throughout the day. If I need to print something I have Printer Pro at the ready.
At the end of the day I have my Epicurious, AllRecipes and The Recipe Box for dinner ideas and can email lists to my Blackberry for a quick run into the grocery store on my way home.
I read Time Magazine on my iPad and have Zinio for my Macworld subscription. I use Netflix for intant viewing and have both Kindle for iPad and iBooks.
My laptop (heavy and clunky by comparison) is now left behind and used for dvd watching in the evenings when I can't find something I want to watch on Netflix.