We investigate the efficacy of a novel manipulation of choice architecture to affect giving-- increasing the number of action options available to donors to increase how much they give. Across six experiments, viewing multiple bids for aid increased both intention to donate and actual donation (controlling for affective states that have been previously associated with costly helping). Finally, we replicate our effect in a natural experiment of charitable donations (N = 10,000). Presenting donors with multiple bids increased the average donation by $8.77 (a 19.7% increase).