A box which called "horribly heavy box" after the player has tried to take it the first time.

The names of objects might want to change also:

"Zero"
Weight is a kind of value. The weights are light, manageable, and horribly heavy. Everything has a weight.
A thing is usually manageable.

This does require a rule for an activity (see the chapter on Activities), but it's a fairly straightforward one:

Before printing the name of a horribly heavy thing (called weighty object):
   if we have taken the weighty object, say "[weight] ".
The Nearly Empty Living Room is a room. "Nearly everything is out, all of Helen's possessions and most of yours." A man called Mr Zero is in the Nearly Empty Living Room. "Mr Zero, despite being heavily paid to assist in this operation, is giving you a look that clearly conveys his lack of interest in budging even one more item." The description of Mr Zero is "Many muscles, no hair."
The book box is a horribly heavy thing in the Living Room. The clothing box is a manageable thing in the Living Room. A broom, a dustpan, some packing tape, and a discarded newspaper are light things in the Living Room.
After taking a horribly heavy thing:
   say "Taken. (Oof.)"
Test me with "get clothing / look / get book box / look / i / drop book box / look".
Test me with "get clothing / look / get book box / look / i / drop book box / look".
Nearly Empty Living Room
Nearly everything is out, all of Helen's possessions and most of yours.

Mr Zero, despite being heavily paid to assist in this operation, is giving you a look that clearly conveys his lack of interest in budging even one more item.

You can also see a book box, a clothing box, a broom, a dustpan, some packing tape and a discarded newspaper here.

>(Testing.)

>[1] get clothing
Taken.

>[2] look
Nearly Empty Living Room
Nearly everything is out, all of Helen's possessions and most of yours.

Mr Zero, despite being heavily paid to assist in this operation, is giving you a look that clearly conveys his lack of interest in budging even one more item.

You can also see a book box, a broom, a dustpan, some packing tape and a discarded newspaper here.

>[3] get book box
Taken. (Oof.)

>[4] look
Nearly Empty Living Room
Nearly everything is out, all of Helen's possessions and most of yours.

Mr Zero, despite being heavily paid to assist in this operation, is giving you a look that clearly conveys his lack of interest in budging even one more item.

You can also see a broom, a dustpan, some packing tape and a discarded newspaper here.

>[5] i
You are carrying:
a horribly heavy book box
a clothing box

>[6] drop book box
Dropped.

>[7] look
Nearly Empty Living Room
Nearly everything is out, all of Helen's possessions and most of yours.

Mr Zero, despite being heavily paid to assist in this operation, is giving you a look that clearly conveys his lack of interest in budging even one more item.

You can also see a horribly heavy book box, a broom, a dustpan, some packing tape and a discarded newspaper here.