donka
iPF Novice
The easiest way is just to run a search on your PC for *.ipa
This will list all your IOS application files that are stored in iTunes. Once you have found their location, you can copy any of these files to a flash drive as a back up. You could take this flash drive on vacation with you but if you wanted to restore these apps to your iPad from a family member's pc and not your own, you would need to install iTunes and then authenticate this PC as an allowed PC under you iTunes account before you could sync these apps to your iPad.
If the biggest issue you are facing is someone accidentally deleting an app from your iPad, the best option is to go into Settings\General\Restrictions and turn the option for 'Deleting Apps' to off. This way, no one can delete an app without first providing a passcode which only you should know.
This will list all your IOS application files that are stored in iTunes. Once you have found their location, you can copy any of these files to a flash drive as a back up. You could take this flash drive on vacation with you but if you wanted to restore these apps to your iPad from a family member's pc and not your own, you would need to install iTunes and then authenticate this PC as an allowed PC under you iTunes account before you could sync these apps to your iPad.
If the biggest issue you are facing is someone accidentally deleting an app from your iPad, the best option is to go into Settings\General\Restrictions and turn the option for 'Deleting Apps' to off. This way, no one can delete an app without first providing a passcode which only you should know.