Don't forget places like your old grade/high school. My grade school is no longer there and I wish I had taken some pictures of it before it disappeared. Old neighborhood stores are another good one. Things and places you take for granite now because "they've always been there" could be gone in a few years. I took hundreds of photos of my Mom, Dad, Granny, Sister, Brother over the years and glad I did. I've outlived them all.
I grew up in Charlotte, NC and left there in 1974. Just about eight years later it had grown so large I didn't even know the place and I had spent 29 years there before moving. The old Carolina and Imperial theater was no longer there. Kress's was no longer there. The old drive ins were gone as was Pop Miller's Store. Take lots of pictures of things you "think" will always be there...they won't.