Glenn, that's why you buy at least a 2 gig memory stick for your camera!
I just went to the sales office for Promenada here in Las Vegas yesterday and probably took about 30 pictures of the model floor plan and the 3d model they set up. Its easier to delete them then have to drive back out and retake them. They also gave me a virtual tour to use on the site on a 256 usb drive branded with their project name. Pretty slick marketing, since you'll probably keep using the drive verse throwing out a cd or dvd.