Book your British Airways flight by December 13th for any time in 2011 using Executive Club miles and BA will automatically upgrade you to World Traveller Plus. This is a pretty significant bump (Most of Europe will cost 60k miles instead of 90k in WTP). I’d post the link, but God forbid the link in the email I received from BA actually work. Also God forbid this was listed on their website. You’ll just have to trust me – it’s a great deal (the ridiculous taxes you’ll pay using BA miles to fly on BA are not a great deal, but you can decide if you think it’s worth it).