>Daily logging of products (name, cost, quantity, total)
>Auto-copy products to future days (always or one-day)
>Forward cost & name updates (no accidental past changes)
>Per-day one‑time copy flags
>Delete or edit products & entries in a unified dialog
>Dark / light theme toggle persisted
>Automatic total calculation with prominent summary bar
>Robust future-entry cleanup when auto-copy disabled
>Streamlined UI: centered date picker, wide nav buttons, aligned numeric columns
>Data integrity: prevents duplicate products, consistent rename propagation