Lots of fun reading these - for me, it's:

no tap water
no margarine, etc., only butter
no shellfish
no deli turkey or chicken, only roasted (hot or cold)
eat cold cereal quickly, after adding milk, while the flakes are still crisp
crunchy peanut butter
use a straw to drink coffee, tea, and most drinks (avoiding teeth staining)
cut up most foods into small pieces - just prefer to eat them that way