Budget day speech memories: Lamont and Ussher
18 March 2014 Last updated at 14:19 GMT
A former chancellor described "being on auto pilot" for Budget day and "a surreal experience" after practising the speech so many times.
Lord Lamont, the former Tory MP Norman Lamont, shared his memories of preparing for one of the biggest days in the year for the chancellor.
Kitty Ussher, a former Labour Treasury Minister who now works for Tooley Street Research, revealed how ministers and staff would be preparing for Wednesday's announcements.