Tickets for the National Homebuilding & Renovating Show (at Birmingham NEC) are normally £10 each if booked online in advance (from the official site - see below link) or £15 on the doorhttp://national.homebuildingshow.co.uk/en/Buy-tickets/Standard.aspx
However you can get 2 free tickets by filling in your details at the below address...http://www.eventdata.co.uk/Forms/Hom00Visitor.aspx?FormRef=Hom32Visitor&PageNo=1&AffiliateCode=
Just make sure to tick/untick the boxes at the bottom of the form as normal so you don't get sent loads of junk mail!
I went to the show last year with some free tickets I found on HUKD - I found it very useful and a thought it was a good day out. But the only free tickets I could find this year are for annual subscribers to the official magazine! ...Then I stumbled across this site offering 2 free tickets! :o)
Hope this helps someone