secure surfing from public place

Use OpenSSH port forwarding to browse web from public place.
ssh(1) can act as a SOCKS server. SOCKS4 and SOCKS5 protocols are supported. All you need is shell access to remote machine.
Example:

ssh -D 4545 user@IP

Now you can specify “localhost” as SOCKS host and “4545” as SOCKS port in connections settings of your browser.