Make a shirt dress work for a day of errands
A shirt dress can cover several ordinary stops in one day. Check movement and closures first, then choose layers and shoes that fit the weather.

Button the dress and sit down before deciding it fits. Look at the chest, waist and lap, where fabric can pull differently from the standing view. Walk up a step and reach forward as if picking something from a low shelf. A shirt dress is most useful when its buttons and hem let you move without repeatedly checking them.
Let the cut decide whether it needs a belt
Some shirt dresses are shaped through the waist; others are designed to hang loosely. Try the dress without a belt first. If you want more definition, use the included belt or another comfortable one and see how the fabric gathers. A tight belt can shorten the effective hem and create bulk above it, so check the movement again afterward.
A straight dress can also work beneath an open cardigan or lightweight jacket. The outer layer creates a different outline without needing the waist cinched. Keep the layers easy to remove if the day warms up, and check that sleeves do not bunch uncomfortably inside the jacket.
Choose shoes for the actual route
For several errands on foot, start with shoes you know are comfortable. Sneakers can give the dress a casual finish; flat sandals or loafers change the look without requiring heels. Check the hem in motion with the chosen shoes. A long dress that clears the floor in a posed photograph may still catch on stairs or underfoot when you walk quickly.
Carry the bag you need rather than a tiny accessory that forces everything else into your hands. A crossbody can leave hands free, but its strap may change how a loose dress hangs. Try it on over the complete outfit, with a realistic amount inside, to see whether the fabric pulls or the belt shifts.
Make the outfit repeatable
If the fabric creases, decide whether you are comfortable with that ordinary change before committing to it for a busy day. Read the care label and choose a laundering routine you can maintain. A dress that only feels wearable immediately after careful pressing may have a different role from one intended for regular errands.
Keep one familiar layer nearby for cool mornings and air-conditioned places. There is no need to build a separate outfit for every stop. A shirt dress, comfortable shoes and a useful bag can do enough on their own when the fit has been tested beyond the mirror.