Thanks to 12MB RAW file sizes and the sheer joy of taking pictures, my Aperture libraries get big fast. I toss 120 GB hard drives in my saddle bag like sandwiches in a lunch box. We all know that you can switch among your Aperture library containers by choosing the one you want in Preferences, then restarting Aperture. But who has time for that? You can simply double-click on the Library container you want, and Aperture launches with those images available.

I realize this is deathly simple. But I’m still running into folks who don’t know it…