I have been a Palm OS user for years and years -- my last was a Palm Zire 71 that stopped holding a charge in its battery.

My dad gave me his Palm Treo 700wx (Windows Mobile 5.0) and I've decided to switch O/S on my PIM.

But now I'm trying to make this do what my old Palm Zire did.

What programs are Must-haves for you?

Things I used on Palm Zire all the time:
DataShield (password reminder program -- must have notes field for writing down the security questions and answers)

DateMate (birthday program. Could put birthdays/events in that were NOT in your contact list. Had Notes associated with each that I kept size information/gift ideas)

KarKare (mostly for writing down gas purchases. But also a rotate the tires/replace the oil reminder system!)

To Dos -- shopping List

Notepad -- scribbling down phone numbers, etc. Could write ON the screen.

Notes -- recipes, lists of books owned,directions to people's houses

LadyMate -- track cycle dates, and temps (when I was temping)

BackupBuddy -- backed up automatically to the card in the Palm ever night and then could reload from there after a crash and be back where I started from without needing a computer around

WorldClock -- display time at different places in the world at the same time. And an alarm clock when on the road.