I love Trader Joe's and am lucky to have two in pretty close proximity. My staples are -
Trader Joe's plain nonfat Greek yogurt
Just The Leaves (romaine lettuce)
mini bell peppers
lowfat goat cheese
concentrated savory vegetable broth
low sodium Roasted Red Pepper & Tomato Soup
Butternut Squash Soup
refried black beans
nuts
frozen fruits
dried apricots
frozen vegetables
frozen shrimp
Trader Joe's Green Tea w/Jasmine
Trader Joe's Chamomile Tea
whole wheat pasta
trail mixes
unsweetened vanilla almond milk
Goddess salad dressing
and whatever else catches my eye.