Buy once, use twice
Pongal & Ganesh Chaturthi
What both occasions need, what each needs alone, and how much overlap there is to save on.
Two relationships converging on one product from opposite directions. The quantities are summed from both edges, so the total is what to actually buy.Occasion → NEEDS → Product ← NEEDS ← Occasion
9
Shared items
Needed by both
3
Only Pongal
9
Only Ganesh Chaturthi
Buy these once
Needed by both occasions — the combined quantity is what to pick up.
| Item | Pongal | Ganesh Chaturthi | Buy in total |
|---|---|---|---|
| Akshata | Essential | Essential | 2 packets |
| Banana Leaves | Essential | Essential | 18 pieces |
| Camphor | Essential | Essential | 3 packets |
| Clay Diyas | Recommended | Recommended | 3 dozen |
| Coconut | Essential | Essential | 6 pieces |
| Jaggery | Essential | Essential | 3 kg |
| Mango Leaves | Essential | Essential | 4 bunches |
| Marigold (Loose) | Recommended | Essential | 3 kg |
| Rangoli Powder | Essential | Recommended | 2 sets |
Roughly ₹650 of overlap at list prices — bought once instead of twice.