Camera bag to protect camera from bumps and drops
Picture cards for about 100 pictures a week (about 64 MB and maybe a back-up 32 MB)
Fresh Ni-MH or Li-Ion batteries, or special camera battery and a set of back-ups
Battery charger (if you use rechargeable batteries)
Telephoto and wide angle lenses
Lens cleaning solution and photographic lens tissue
Camera manual
Plastic bag to protect camera and film from inspections in airports
A one-time-use camera or two for beach use or back-up
Tripod
A notebook to keep track of the pictures you take