Here's my character concept: an early middle-aged female merchant. She's one of those people who can get it for you, whatever "it" happens to be: an exotic herb, a rare book, a trinket or bauble, and of course more common sundries for everyone from farmwives to adventurers. At a significant mark-up, of course, because she's not in this as a public service.
She came from a hardscrabble, peasant background, so she's no soft, supple aristocrat. She's quite handy with a bow, and can hold her own in a brawl and with a knife, too. She has friends in low places as well as moderately high, having earned the respect of local merchants guilds...as well as thieves' guilds. She has a reputation for reliability: her word, once given in a matter of business and profession, is her bond. This is not to say she is incapable of telling a lie, or not telling the whole truth, but if she says she will do something in the course of her business, it gets done, even at substantial risk and cost to her. In a world of non-performers, grifters, bullshitters and confidence men, that alone is worth much.
She has a shop, but she also caravans in the summer, buying and selling in places along key trade routes. She is as much at home on the road as she is in her shop in Baerlon.
I figure there are plenty of potential plot hooks in this background. Someone in her profession is certainly privy to the news of the world. And who knows what exotic items might somehow come into her possession--like a long-lost angreal, for instance--and who may also seek those items.
As far as sexuality, she will be heterosexual. She's been around the block, so pretty much any sexual situation she ends up in is fine with me.