What are Sorted Sets useful for?

[nelsonic]

Score/Leaderboards are a good use-case for Sorted Sets.
http://www.tutorialspoint.com/redis/redis_sorted_sets.htm
We are using them for ordering our Work Queue in arana.

[rjmk]

Could you use sorted sets to sort of pre-run a query?
Say you have a lot of products on your website and a lot of information about each product, but you often have to provide products within a price range. Could you duplicate some of the information about your products by having a zset with values equal to product ids (or something) and the scores being the values and be able to retrieve the relevant products quickly?

[nelsonic]

that would be a creative (valid) use of a zset... 👍