When habit falls short

I am definately a creature of habit, every morning after I work out I go to the local gas station and get a huge cup of coffee. Then I drive the two minutes to work, go to my desk, drink a huge bottle of water along with my coffee and have half a Kashi breakfast bar. By nine a.m. I have usually walked over to court which is about 4 blocks away and I don't usually get back to my desk until lunch time. Lunch is always salad which I make the night before along with another bottle of water and at some point in the day I manage to drink two additional bottles of water. I think you can now see the problem with this schedule, I don't have an afternoon snack in there anywhere. I thinking I am consistently ending up low on calories as a result, which is not my intent. Today, I was going to bring an apple to work and have it along with some of the office supply of peanut butter (my office always has peanut butter and jelly floating around, don't ask me why) but I forgot to grab it before I left for the gym. I can usually rely on another co-worker to make popcorn but a lot of days recently I have ended up going home starving and then oddly becoming less hungry on the commute home and eating a small dinner. The simple solution is to stick an extra piece of fruit in my lunch bag, or buy something that I can keep at work such as popcorn. I just need to work on getting in the habit of doing that, after all once I get into a certain pattern it should be easy to manage in the long run.