Packing for four is not four times harder than packing for one. It is harder than that, because the duplication is invisible until you are standing over an open suitcase.
Start with the allowance you actually have
Each passenger gets their own quart bag, including children. A family of four therefore has four bags — far more capacity than most people realise. The problem is not space. It is that the same four products get packed four times.
Share what can be shared
Most hair and body products are shareable. Genuinely personal items are fewer than the pile suggests:
| Share across the family | Pack individually |
|---|---|
| Shampoo and conditioner | Toothbrush |
| Body wash | Deodorant |
| Body lotion | Prescription medication |
| Sunscreen | Contact lens supplies |
| Toothpaste | Anything for sensitive skin |
Sharing shampoo across a family cuts four bottles to one immediately. The exception is a child with sensitive skin or a specific need — keep theirs separate.
Put the shared bag with one adult
Keep shared liquids together in one adult's quart bag rather than distributing them. It makes security faster and means nobody is searching three cases for the sunscreen.
Use the children's bag allowance for the bulky, awkward things instead — sunscreen, aftersun, anything you need a lot of.
The four-bottle version
The Family Travel Kit is built for exactly this. Four dual-chamber bottles carrying eight products:
- Shea Butter — shampoo and conditioner
- Cherry Blossom — body wash and lotion
- Fresh Men — shampoo and body wash
- Baby — hair and body wash, and lotion
All in one waterproof bag, $19.99, which works out at $2.50 per product. Conventionally the same eight products means eight bottles.
Things that go wrong, and the fixes
- Someone's specific product gets forgotten. Do a round of "what do you actually need" before packing, not after.
- The sunscreen is at the bottom of a checked bag. Keep day-one items in a carry-on.
- Everything leaks into everything. Waterproof bag, upright, caps up.
- Bath time with no free hands. A bottle that flips between wash and lotion helps more than it sounds like it should.