Fun with Fotos

I am sure there are many wonderful programs to create elaborate photo collages, but being somewhat technologically limited (if I only had more time....), I made some rudimentary ones.

I finally captured a few smiles on our way to Austin:

Geneva on the 4th of July at Barton Springs:

Geneva from birth through 8 weeks:

I used Picasa to make these. Does anyone use any other program?