Non smelly lunch?

Hi everyone! I’m going back to college in about a week or so! I was looking for easy lunches that i can prepare at home before i leave for class! The thing is, i have class from 10 am - 1 pm, and then again from 1 pm to 4 pm, so ideally something that wouldn’t require heating (although there are microwaves at my school), and something that’s not smelly (probs will be eating in the middle of class lol!)
Thank you in advance if you have any suggestions!