Yes, that's here: http://www.thecatsite.com/a/help-my-cat-is-lost Be sure and read the comments, too, for more ideas. Basically, the comments have served to add on to the original article written by @Anne, who owns and maintains the site.Thank you to everyone so far. Scent trails? I think i read about that
For an indoor only cat who manages to get out, the problem is that she doesn't really recognize anything. The vision of cats is adapted primarily to detect movement, which isn't especially helpful when it comes to finding home, and besides, she doesn't know what home should look like. What she does know is how home smells, what her litter box smells like, what her humans smell like, what her favorite food and treats smell like. So you can lay scent trails to guide her home, similar to the way dogs mark their territory, except with things like sweaty tee-shirts rather than peeing on every tree you can find (the neighbors would complain).
Margret