I was just reading this question regarding Money saving questions being on topic and general premise was:
IF the question can reasonably be answered with an uncommon, inexpensive solution, I wholeheartedly believe it's on-topic.
So I was wondering if a [cost-reduction] tag or similar would be appropriate for these types of questions?
It would make it easier to identify questions asking about money saving solutions and therefore quicker to decide whether or not they are off topic as there are no unsuitable solutions or whatever.
While this tag would mean the asker is looking for cheaper alternatives, it may be the case that none are and naturally other answers simply to fix the issue should be accepted as good answers by the OP and possibly even lead them to having to edit the question in order to omit the cost cutting element of it.