Well I feel like such a fool. I booked to go to Lisbon with Easyjet from October 13th - 15th or so I thought. Well 5 months after booking I decde to check all my paperwork and I find I have actually booked flights from 13th to 16th. I usually only book things with a second pair of eyes viewing but this time I did it alone (proves I can't be trusted).
Hotel is booked seperately for 2 nights 13th - 15th as I was convinced I had been so clever and booked these flights. It is not a disaster as I have finally got round to checking the paperwork in time to fix things. We can either buy a replacement return flight on 15th for £106 or add an extra night in the hotel for £108. I know wich one I would prefer. I have had the embarrassment of explaining it all to my partner this morning and I am currently waiting with baited breath to see if he can get an extra day holiday from work. Keep your fingers crossed for me. Either way its an expensive mistake.
Moral of the story don't be stupid like I have been check and double check before hitting the buy button, and do read that email properly as soon as it arrives in case you have made an error and have a chance of getting it fixed.