I had a bunch of copy and pasting I wanted to do to my Pi from my Windows pc. Obviously, by default, the Pi is locked down and isn't visible on the network. To get it be visible, I had to install Samba and tweak the config and also set a password.
Here are the steps I took:
sudo apt-get install samba
sudo apt-get install samba-common-bin
sudo nano /etc/samba/smb.conf
Make some changes to this conf file.
workgroup = WORKGROUP
wins support = yes
add the following to the bottom of the conf file.
[PiShare]
comment = Pi Home
path=/home/pi
browseable=Yes
writeable=Yes
only guest=no
create mask=0777
directory mask=0777
public=no
Finally, run this command and enter the password.
sudo smbpasswd -a pi