For Christmas, my sister got me a Michael Kors crossbody bag (it's tiny and amazing) and all of my essentials fit neatly inside. I'm really not a purse person - I prefer to be minimal and carry just my wallet, phone, and car keys in my jacket pockets - but of course for travel, it's important to keep all of your stuff contained (pickpockets!).
And of course, tomorrow morning I'll be up bright and early to check everyone into their flights so that we have good seats. **TIP! When you're booking your flights initially, even if you can't find seats next to your travel cohorts or your only options are horrible ones adjacent to the lavatories, when you check into your flight, there's a good chance that you'll have the ability to get better seats. Just check in as early as possible (24 hours before the flight is standard but may differ by airline) to see which seats might've opened up. It's kind of a first come, first serve thing because people cancel or miss the plane, etc.