I love the standard lululemon bag. Both my DDs and I have one and we all use it a ton. I'm bringing mine to Disney next week. Holds iPhone, small card/id case, hand sanitizer, lipstick/chapstick, sunglasses (no case), and still room to spare.
For when I want something a bit bigger to hold water (bottled or refillable), a light sweater or tourist purchases/brochures, then I LOVE this crossbody/sling style backpack from Eddie Bauer. I took this to Disney last year when we still needed masks for Disney buses, had water bottles because it was 100 degrees, ponchos, etc. It rolls up to tiny so easy to pack inside another bag/luggage to have just in case. It has many different zipper compartments, even inside, to keep valuables safe, and your phone fits in the pocket in front so no one can easily steal your phone. A "Swell" size water bottle easily fits in the exterior elastic pocket and stays firmly in place (even after on and off a million times at Disney). You can also change which side the strap clips to so that you can wear it on either shoulder. On sale right now for $22.50
https://www.eddiebauer.com/p/8230023...SIZE&sizeType=
Mom to two amazing DDs ('07 & '09) and a fur baby.
Gluten free since Nov '11 after non-celiac gluten sensitive diagnosis. Have had great improvement or total elimination of: migraines, bloating/distention, heartburn, cystic acne, canker sores, bleeding gums, eczema on elbows, dry skin and scalp, muscle cramps, PMS, hair loss, heart palpitations, fatigue. I'm amazed.