Multiple cell phones
I actually have 3 on my belt
I use the Samsung 780i I think it is. Had it around 2 years now, but due to the processing it requires, battery life is only about 11-14 hours, and good luck if you decide to talk at all!
I keep a Virgin phone ($20/month) that acts strictly as a text pager for server notifications as it was one of the loudest phones I could find. Pagers just aren't made any more
I then have another Verizon phone that I use for my regular contact with employees and business contacts etc.
I've tried many phones over the years from blackberry to phones operating the windows system. I prefer the Windows systems as I can sync to my outlook, excel and word files etc.
I'll likely pick up one of those new thin computers with the Verizon hookup - $200 or so? Nice and light. Much better than the notebook I carry EVERYWHERE I go currently