The simplest way to stop crime against women is of course to ban the women themselves, not their jeans. After all, if a pair of jeans came to college without a woman inside, would it get harassed? Clearly not. So why ban the jeans?
Filtering is an essential Gmail power-user feature. With filters (and labels) you can use Gmail to handle a ton of incoming mail. I know — I'm subscribed to 64 mailing lists at Google. My filters let me manage the deluge with ease.
But managing the filters themselves has been another story. Each filter has to be crafted individually — though the ability to "filter messages like these" (see "More actions" while reading a message) does simplify the most common case a great deal.
Filter import/export, available today in Gmail Labs, helps you work with filters in bulk, rather than just one at a time. The basic function is simple: turn it on from the Labs tab under Settings, and from the Settings > Filters page you can download a file containing some or all of your filters or upload a file to create a set of filters all in one go.