I've found it to be really helpful for my vocab memorization to use the Flickr image search in the item editor to attach a picture to the English Association to help me more quickly select the right answer. Here's my latest set on French vocab:
http://cerego.com/sets/734058
Images also serve as a kind of visual mnemonic for me: Sous (Under) has "Under the bridge" as a visual; Sur (On top of) has "On top of the world" as a visual. These have helped me a lot in my practice and memorization.
Curious to hear what other ways I could improve my retention of foreign-language vocab. Let me know what works best for you. :-)