I wish you lived close by.
I have lots of friends that do not have the time and just do not enjoy shopping. I have been known to meet them at a store and have a rack of clothing, boxes of shoes and put them in a dressing room and let them try on all sorts of clothing that is not only stylish but also actually wearable for their lifestyle.
You are correct it does take up a lot of time to shop.
Best if you can plan a time when you can either leave your child/children with a care giver or have someone tag along to watch your child or children.
Over the years when I have been so busy, I have learned to write down the companies , designers and styles that I like and always fit me.
I know the Cold Creek Jeans that fit me. The Target sizes that the tops fit, Anne Klein shoes will always fit..
IF I cannot make it to the store, I can go online and order items. If they do not look good, I actually mail them back..
A couple of pair of nice pants, a few cute tops or a blouses and a sweater or a Jacket can look sharp with some cute flats. I keep these pieces of clothing and shoes or special events or when I have an appointment. They are separate from my everyday clothing.
Once I feel like I have worn these enough, I start wearing them for my everyday errands, picking up our daughter, running errands.. etc.. I can then get rid of some of the shabbier things. And really do either donate them or put them in a Garage Sale pile.
I also love dresses, so I try to have a dress or skirt for each season.
Another hint is that I wore and still wear an apron almost all day in the house to protect my clothing from stains. It is a huge help in protecting my clothing from stains. Spills, leaning over counters, appliances, the sinks, carrying kids.. etc.. It is amazing how it has saved me from some major spills and splashes.
You just need to learn to decide what your life style is and what wlil work for you.. You can make it happen.