AOG
Alternatively you could use your provider's 'cloud' solution.
I have a Mac, so I'm not an expert on Windows-based technology, but I hear good things about Google Drive. Once you upload documents from one PC, you can access them from your laptop, tablet. smartphone etc.
http://uk.pcmag.com/google-drive/15854/review/google-drive
The downside is that you aren't actually accessing your documents on you home network, rather - you're pulling them down from the cloud. This might be an issue if you don't have a reliable (or slow) Internet connection.
There are also some who are wary about the security of cloud-based solutions, so if I were in your shoes (and I am, because I use Apple's iCloud to store documents, emails and my calendar items), I would look into setting up a very strong password, together with 'two step verification':
https://www.google.com/landing/2step/
It's very easy to set up and gives much better protection than a simple password.
Finally, I
highly recommend downloading an excellent app called 1Password. I have recently read some horror stories of people who have had their accounts hacked partly because they have easily guessable passwords. If you are considering storing any sensitive documents in the cloud, having a strong password is essential.
1Password works like this:
You download the app (there's versions for Windows, Android, iOS and OS X), and you create a record for each of your online logins. You can tell the app just how complex you want the password to be (and how many special characters, upper case characters and number to include).
1Password will securely hold these password for you, so whenever you need to log on, all you need to so is open 1Password and tell it to fill in your details.
1Password generates passwords like these:
BkItKEChzD4ejF4Yg(OM
Impossible to guess.