One question that I've often thought about is the place of the single (never-married, divorced or widowed) woman in the Jewish community. If she still has kids, she of course is consumed with all the rights and responsibilities of motherhood. But when there are no children, or the children have moved out, what then? True, there are some chesed organizations that accept volunteers. But there has to be more to life than handing out challah at Maimonides, organizing Chinese auctions, and saying tehillim. Not to mention--a lot of the women who do these activities are married anyway.
So, what about the idea of the Jewish nun?
Unlike Catholic nuns, who take lifelong vows and "marry" the Church, a Jewish nun would have no such obligation She would still be free to date and marry. However, it would be a way for her to be a part of the Jewish community without constantly hearing about "Miri's daughter got engaged" or "Oy, Yanky fell off his bike." Specifically, Jewish nuns would have their room and board provided. In exchange, they would teach in the schools, perform volunteer activities, and run hosting centers for people visiting out-of-town areas. They would also spend their time in the study of all Jewish texts, becoming experts in halacha so that they can advise women on sensitive matters (and all my married readers know what I'm talking about). Gemara study would be permitted and encouraged, but not required. However, members would not be called upon to lead services. Membership is open to all single Jewish women who no longer have children living with them, including agunot.