A few days ago, my partner and I received a shopping voucher worth 500K rupiah ($30). At first, it felt exciting. We already had a plan: both of us needed new denim pants, and this voucher would cover it. We agreed on one rule, the total spend shouldn't go beyond 20% above the voucher's value. Simple enough, right? Two days later, after walking through malls, checking store after store, and chasing discounts, we found ourselves exhausted and frustrated.