Try Granny Smith for a combination of sweet, sour, and contrasting textures. Savor the apple by cutting it first.
Throw one in your purse or bag so it's there and waiting when hunger unexpectedly strikes. Buy and eat at least 7-10 weekly.
What are you eating now that you could replace with an apple as a snack? Can't replace overnight? Cut your junk food portion in half and eat the apple afterward. Then cut your junk food portion into quarters.....eights....sixteenths....no more.