One suggestion for a new building would be "Museum," where you could store unique items (one each) ... and still keep the reputation. That could help reduce clutter a bit.
Berzerker2 -- Have you sold the total number needed? (e.g., 18 sand paths) For these types of quests, it won't give you a running number until you meet the goal.
TD93 -- I'm pretty much doing the same thing -- just trying to get that expedition badge. The fragrances do clear up once you get your second character; she wants them in exchange for giving pans and cupcakes (which somehow become lanterns, go figure.) I am wondering about the parameters for the badge, though. Do I actually have to get to the end of the expedition for the badge, or just play it for the five days?
Arus51 -- The benefit for saws and nets is fairly minimal. Basically you're saving time, which for fishing especially can be substantial. Again, not huge, but there is at least some benefit.
Just a small note for other lamebrains who didn't get the "hack" for the easy badge -- you will have to scroll down in the Market to see the "Use 1" in Get Mysteries.
 "Oceania"){kind=icon}
 "Tropical Merge"){kind=icon}
 "Tiny Jukebox"){kind=icon}
 "Magirune 2"){kind=icon}
 "UFO - Unknow Flying Ox"){kind=icon}
 "Idle Wizard"){kind=icon}
 "Dungeon Crusher: Soul Hunters"){kind=icon}