They are since Nuffield gyms pulled out.

I recently blew 8,500 points on an £85 spend at Ask Pizza. The benefit of doing this is double what you'd in Sainsburys for the same points and (unlike using Tesco vouchers in Ask) the credit covers alcohol!

NB - there is a VERY easy £15 per Nectar card you own at the moment (£30 if spent in Ask). You get 250 points for every review you write at the Thomson Directory website, up to 3000 points. The reviews are capped at 150 characters so it doesn't take long! You simply search for a business, click on the 'Review' icon next to it, bang in a few words and move on. Points hit within a month. You need to go via the Nectar website which has full detals.