You can get a discounted front row ticket for Hairspray if you turn up when the box office opens at 10am. That's what my sister and I did in July anyway. We only had to queue from about 9:30am.

I booked tickets to see La Cage Aux Folles yesterday for the matinée on the 25th October. Tickets are dead cheap in the previews and we got ours for £8:50 each including booking fee.