Npower home energy monitor (use a hotmail or other shit free mail address, cos they'll spam you):
https://www.npower.com/At_Home/Tactical/smartpower/freemeter/default.aspx
Free Twinings Tea:
http://www.twinings.co.uk/free-speciality/
Lego Magazine 2 year subscription:
http://club1.lego.com/en-GB/legomagazine/default.aspx
First Aid Guide:
https://www.sja.org.uk/sja/support-us/the-difference/get-a-free-first-aid-guide.aspx
Dial 0800, 0808 & 0500 numbers for free from your mobile:
http://www.0800buster.co.uk/
https://www.npower.com/At_Home/Tactical/smartpower/freemeter/default.aspx
Free Twinings Tea:
http://www.twinings.co.uk/free-speciality/
Lego Magazine 2 year subscription:
http://club1.lego.com/en-GB/legomagazine/default.aspx
First Aid Guide:
https://www.sja.org.uk/sja/support-us/the-difference/get-a-free-first-aid-guide.aspx
Dial 0800, 0808 & 0500 numbers for free from your mobile:
http://www.0800buster.co.uk/