I remember people talking about how when launcing a product is was best to do it on a tuesday because people are pissed off about being back at work and more likely to indulge themselves with online goods. Is there any basis to this? I think it would probably be better to do it at the weekend as with my lists I get a better open rate at the weekend than any other time, but maybe thats just me? Just wondering anyway is there a day that all the 'gurus' use or is it another one of those things that varies niche to niche, list to list, customer to customer etc?