wear cap
You do not have enough free space on your body to wear a fur cap!

would be cool if it said:
You do not have enough free space on your head to wear a fur cap!
or "you're already wearing something on your xxx" or something similar
ok well cap is easy even i can figure out it fits the head slot but some
armours take several slots and have weird names and it would make stuff
sosososo much clearer if it said which slot i need to free to wear certain
piece of equipment
thänkjyy!

okioki i still think this is a superbious idea but then nubume was informed
about "wear replacing" which pretty much fixes the "problem" i've been having
but also i was informed it bugs more than spirals mommy but i guess that's a
completely different issue