Every parent works this out eventually. You buy the thing, they play with the packaging, and some part of you quietly resents the receipt.
It isn’t a mystery though. A toy that already knows what it is can only really be that. A box doesn’t know anything, so it can be a house all morning and a boat by lunchtime with no negotiation. That’s a better offer.
So here are four, from the biggest box down to the tubes in the bathroom. Nothing here costs anything.
The big one, if you’ve got a big one
If a delivery has left you a box a child can sit inside, that’s the whole afternoon sorted.
The thing worth getting right is who does the deciding. It’s tempting to cut a proper door, add windows, make it good. Resist a bit. Cut one opening and then hand over the crayons, because a box they decorated badly is played in for days and a box you made beautifully gets admired and abandoned.
This is the longest of the four by some distance. Set aside a proper stretch for it.
Smaller boxes, in a line
Line up whatever small boxes you’ve got and join them with string. That’s a train, and it turns out to be a very good one.
The loading is most of the appeal. Once it exists, everything in the house becomes a passenger, and there’s a fair chance you’ll find the salt in carriage three. Pulling it round the flat while things fall out is the game, not a flaw in the design.
The tubes from the bathroom
The cardboard tubes nobody knows what to do with become characters with a few pen marks and some scraps of paper.
They stand up on their own, which is the practical bit, and they’re small enough that making one takes a couple of minutes rather than an hour. Children who lose interest in a big project often go a long way with these, because each one is finished almost as soon as it’s started.
A box of old clothes
Slightly stretching the definition of cardboard, but the box is the point.
Old clothes, scarves, a hat, offcuts of fabric, anything that can be put on. Once it lives in a box in the corner it gets used without you being involved at all, which is the best feature any activity can have. Adult clothes work better than child-sized ones, because being too big is half the fun.
Keep one back
The only real tip we’d add is to not put every box out at once.
A single box is a whole world for a couple of days. Four boxes on the same afternoon is just clutter, and the novelty gets spent all at once. Flatten one and put it behind the wardrobe for the next wet Saturday.
If you’re after something with even less to it, a single sheet of paper goes further than you’d expect too.