Policymakers have invested significant resources in financial education to improve financial literacy of the poor, reduce bad financial decision-making, and increase take-up of financial services and products. Yet, there is limited evidence on the effectiveness of such interventions, especially in developing countries. This paper provides evidence from a clustered randomized controlled trial (RCT) where a relatively light financial education program (one day of training) was offered to a large sample of women (n = 1,281) from poor households in informal community settings. The educational intervention was a significant departure from the more costly traditional classroom-style adult education interventions. It was based on simple "rules of thumb" and used a goal-oriented and action-focused approach, targeted at changing behaviors. We find evidence of modest, positive treatment effects for some outcomes including an increase in personal savings, achieved at a relatively low cost of training per participant.