As others have said, you need to be VERY CAREFUL when going between computers.
I use a slightly different approach. I have all of my User Date in a folder called "Data" on all of my computers. So my QBs file is there, Documents I've moved there, basically any program that stores info in a folder, that folder has been moved to Data on ALL of my machines. (Not really hard to do.)
Then I use a program called Beyond Compare to sync my files between my desktop and my notebook before or after a trip. This program compares the Data folder on the two machines and only copies the files that have changed. So before a trip it takes all the files I've been using on my desktop and copies them to the notebook. But only the files that need updating. Same is true when I come back. Anything I opened and modified on my trip, like QBs, will show up as a newer file on the notebook and it gets moved to the desktop.
Microsoft has a similar program and I'm sure there are others. But I've been using Beyond Compare for years with get results.
ADDED: I should have also said that I DO NOT recommend putting any financial data on any kind of Cloud Server - UNLESS there is an overwhelming reason to share the data that you can't do another way. There is always the chance of breaches (disclosed and not disclosed), but the real issue is that I've often found myself in hotels or other places that A) I wouldn't want to share my data over (VPN or not) and the thru-put is just so poor that it is painful to use the Cloud Server. So if I had my data up in the Cloud, it would basically be unusable. So I'd rather keep the data on my local machine (syncing) or use one of the many programs that allow me to securely Remote Desktop into my office machine.
