Session Stacker solves the #1 productivity killer for side hustlers: forgetting where you left off. Every time you sit down to work, you waste 20-30 minutes just trying to remember what you were doing. Session Stacker fixes this with one simple habit — before you end a work session, you set your next task. When you come back, you know exactly what to do. No boards, no backlogs, no sprint planning. Just clear next steps. Features include AI-powered task review, streak tracking to build consistency, session history, and detailed stats to see your progress over time. Built specifically for people building side projects with limited time — not enterprise teams with dedicated project managers. Works as a PWA on any device. Free 7-day trial, then $4.99/month or $49 lifetime.