As well as that, do you play via logging into Facebook?
I ask because at the bottom, at least with me, there is usually an option to get extra money, rests, treatments or morale boosters by watching videos. It's not much (one each for the packs and money is not usually high), but there are times where you can watch a few videos in a row before the videos remove themselves.
Give that a shot if you want to build a bit of cash for next season.