I'm quite serious.
I walk in, pick the ward that contains what I'm looking for, star the retainers that have it and I go get it.
The only failing in the system is that I the items might simply not be there, an issue that would be rectified by either merging some of the market wards with other wards or by making the search function global through all the wards instead of just the ward where the goods SHOULD be posted. Alternatively, adding more retainers slots would also be a huge help as it would allow players to cover more territory to post goods in the appropriate wards.
So yeah, a global search would be great, but I can at least USE the wards now.