I'm not sure this has been suggested before (I checked!) But I think something that would be really useful is when you search for Items on the Trading Center, it could be a little more advanced than just searching for one item at a time. What I mean by this is, you can filter results based on things like Food/Amusement/Decor/Applicator/Craftable/Misc., much like in your hoard. I think this would make it a lot easier if you don't care what type of amusement you want, for example, but you don't have to search for just one specific thing at a time, nor would you have to sift through non-amusement things. Let me know if you need clarification or have ideas to add!