I've tried lots of different methods for trimming my bangs over the years. I ran across this tutorial on NYmag.com and it offered a cutting approach I'd never tried before. You flip your bangs up and cut at them straight down. I also thought it pretty hilarious because step one of the tutorial is "START SOBER". I have been guilty of many a late night, post booze bang trim, and nothing good comes of it. Here are my pre- and post- trim shots from today.
(also, you may notice the nice circular burn on my neck. I got this new curling iron and it is pretty fancy with a swiveling handle. There is a learning curve to using it....)