I know your pain all too well! I lived in a dorm where fridges weren't allowed back in the day, and it pretty much sucked. Though I wasn't primal back then (1992 -- yikes, I'm old!), my go-to snack actually was, now that I think about it. A can of tuna, mixed with a little EVOO and red wine vinegar. Now that we know cans may not be the best way to store our food, you can always get those tuna pouches to keep on hand.
Motherhood: When changing from pj pants to yoga pants qualifies as 'getting dressed'.