I remember probably the first time in T1 flying up to Scotland. I was probably 9 and my sister and I were dispatched to relatives while my parents completed the house move. We were skyflyers and it was all rather fun. I just remembered the departure pier was really long and tubular.
I think I may have flown from T4 once in 2005 to SFO. First time in a 747 off to campervan round the states.
After that pretty T5 solid. It's remarkable that I know people who still associate T5 with being a disaster due to the teething problems on opening.
Slightly off topic does anyone know if there's ever a chance to see inside what's left of T1. I have done the Templehof tour and it was one of the best things I've seen. Especially the arrivals hall.