My idea is quite simple. Some areas could have some rooms where you could
train/study a single skill/spell. The skills/spells should naturally be of
generic nature like swimming, light or attack or some such. Anyone could train
these skills/spells, and it would maybe cost some gold in addition to exp
required. The exp cost could also be more expensive than in the guilds.
In some very rare rooms it could maybe be possible to train even some more
rare skills limited amounts. Thanks for considering this, Nargar.