"I'm Backing Britain" was a brief patriotic campaign, which flourished in early 1968 and was aimed at boosting the British economy. The campaign started spontaneously when five Surbiton secretaries volunteered to work an extra half-hour each day without pay to boost productivity and urged others to do the same. The invitation received an enormous response and a campaign took off spectacularly; it became a nationwide movement within a week. Trade unions were suspicious of, or even opposed to, the campaign, considering it as an attempt to extend working hours surreptitiously and to hide inefficiency by management.
The campaign received official endorsement by the Prime Minister, Harold Wilson, but it found that being perceived as government-endorsed was a mixed blessing. The Union Flag logo encouraged by the campaign became highly visible on the high streets, and attempts were made to take over the campaign by Robert Maxwell, who wanted to change its focus into an appeal to 'Buy British', but the campaign's own T-shirts were made in Portugal. After a few months without any noticeable effect on individual companies or the economy generally, interest flagged amid much embarrassment about some of the ways in which the campaign had been pursued and supported.
It has come to be regarded as an iconic example of a failed attempt to transform British economic prospects.