Healthy foods to keep at the office?

Woohoo, you are super organized. Let me think what I have in my locker, 100 cal popcorn packs on the nightshifts, oatmeal packets (can make your own and prepackage in ziplocs), almonds, pumpkin seeds, different green teas, wasa bread (i like with avocado ((which I usually bring in at the beginning of my week and just slice off pieces as I go)) and a piece of turkey for a snack.

unsweetened apple sauce

I always have a bag of homemade granola, greek yogurt, vinaigrette salad dressings, cottage cheese, egg whites, and a few homemade frozen meals like burritos, chili, and soup.

My two staples that "live" at work are a jar of peanut butter and a bag of wasabi peas that I keep in my desk drawer. I bring other things daily in my cooler (apple or orange, carrots or slices of red bell, mini babybel light) and those are my usual snacks. But, if I forget to bring something or I'm stuck late or something I know I have those two things that keep well and are always yummy!

That sounds like a good list! In the fridge I have greek yogurts, celery sticks, baby carrots, protein shakes, hummus and hard boiled eggs. In my snack drawer I have almonds, pistashios, peanut butter packets, popcorn, applesauce, craisins, granola, soup packets, instant oatmeal, pretzels, and raisins. Then I usually bring a apple, orange or banana in my bag!

my friend likes to eat sliced red/yellow/green peppers

I like plums diced up.
Frozen grapes
Raisins

I know there is still the sodium and caffeine factors to take into account (well, unless it's herbal tea) but I've found bringing 'chocolate' tea has helped a little bit with curbing down my sweet tooth, I still get that little bit of satisfaction from chocolate without as many calories. Almonds, apples with peanut butter, string cheese - you really do have an advantage too with having a fridge, bring veggies and hummus

I have so much stuff at work that it makes my coworkers laugh, but it keeps me from eating the cake and cookies that's usually in the kitchen.

I keep:

Low fat animal crackers
Cottage Cheese
Apples
Laughing Cow cheese wedges
low fat pretzels
instant oatmeal packets
100 calorie snack packs
english muffins
triscuts
peanut butter or nutella
Pretzel crisps
on-the-go water mixers
almonds

Where to start. I pack a lunch bag everydy with all of my snacks and parts of meals in it. I go to work at 6AM so i wait to eat breakfast until I get to work (it helps me until lunch). breakfast consists of oatmeal with dried fruit mixed in, or some dry cereal; and a piece of fruit. I have a morning snack fo veggies, carrots, cauliflower, pepper, etcs. I just found hummus packets by Wild garden that DONT need refrigerated and they are yummy. My lunch is normally a salad for the salad bar, but sometimes i bring a packet of tuna for on it and something like pretzels or crackers. In the afternoon, I will have 1/2 of trail mix.

I keep in my desk for days that I am really hungry or forgot to pack food chewy bars, nature valley granola bars, prepackaged trailmix, instant oatmeal ( i use the quick oats above), craisins, mini luna bars, and a variety of crystal light packets. i also have some jelly beans and hershey's kisses when I get really hard up for sweets.

i like all the other ideas too!

I like to always have tinned soup at work so there's always a good lunch at the ready. Green Giant sweetcorn, small tin, sometimes I eat it right out of the tin! Have recently bought a bag of deluxe fruit and nut from Julian Graves and a handful of that with a cup of tea is a great energy boost, they're also nicer than normal mixed nuts because it has pecans, cashews and cranberries.