Recently I have noticed when compiling that Visual Studio is filling up my /bin/Debug folder with about 20 .dll files, which I previously linked from a /assets/packages folder where I thought I would keep them to ensure /bin/Debug cleaner, so when I noticed they were all in /bin/Debug I decided to move them all back to /assets/packages and then when I recompiled my application to ensure they were all re-added correctly with the new location, it put them all back in the /bin/debug folder? they remained in the /assets/packages folder but they all were copied in to the /bin/debug folder.
How can I get it to stay in the folder I linked them in via references?