I use 1 list
1 PC at Work
1 Laptop & Desktop at Home
1 Palm Piot to sync
At work I sync the Palm before going home
At home I sync the Palm with my Laptop
Then I use File Sync to keep my Outlook.pst synced from Laptop to Desktop.
I re-sync if needed before going to work.
Effortless & very short amount of time spent.
I'll never lose it unless all 3 Hard Drives & Palm are simultaneously destroyed in a nuclear holocaust or invasion by aliens from outerspace.