put it on timer, stick it someplace at the right level and pose. if that doesn't work out, do the ol' one hand missing from the picture trick.

Point at face. Click.

if you have a reasonably good video function on your camera, just place it at the right level in a reasonably well lit roo, film yourself changing in and out of all 18 shirts, pick the most ackward frames of the video, crop/resize them and save them as pics. easy peasy

(roo=room)

check out this underground website called myspace.com for reference photos. its a catalog of all of the different ways to take a picture of yourself.

Put camera at arms length, slightly above head, and pout. Take picture. Change shirt. Repeat.

use a mirror.

^But don't use the flash

take off your pants

I like Olli's video idea. You could also time yourself so it becomes a little race. Under a minute would be quite impressive.

use the timer, and pose at will

1 Take camera.

2 Give to a friend (coleague or co-worker will do) and brief them on the project.

3 Say CHEESE!

4 Eh voila! You should now be the proud owner of a selection of snaps of yourself ; p

Other than that you could just read the section of the manual that covers the timer and setting it...

^ ; ^

Any method is good as long as you do not use a mirror.

Apparently the best way to get a lot of comments really fast is to write negative things about a shirt.

Any press is good press.

I'm following you, indierock.