I am a big yard sale shopper, and I give them too. I sell things really cheap so as to get them out of my yard, and what ever doesnt sell, I box up and take to Goodwll for a Tax Credit. When I go to a yard sale I only buy clothes that are in great shape or are easy to fix, like a button or a hem, and I pay $1 a piece for womens clothes. Some Items, like a blazer for work or a good pair of jeans I might pay $2 for.
As for Children's clothes, I have sold mine for $1 a piece early in the morning, but near 11 am or noon, I was selling them 2 for $1 just to get them going. It doesnt matter how much you paid or how new the item is... or the condition, if they have kids... they will only pay so much for yard sale used clothes. If you ask for too much... you will be boxing it all up to go to GoodWill.
If you chose to go out on a limb and take your stuff to a consignment shop, you may or not do well there. Some shops only pay 40 percent of the selling price. So you take in a nice button down boys shirt. They mark it for $4. If it sells, you will get les than $2 for that shirt. If it doesnt sell that month, they might mark it half price next month, and you might get less than $1. If it doesnt sell, or someone rips off the tag... well you get nothing for your nice shirt, and you dont get the shirt back, they donate it and get themselves a credit. So with that said, I would try taking some of the most expensive items there first and see how it works for you. It wont work for everything, but for really good quality stuff it was worth the try, rather than a yard sale.
Just so You know for next time, you can also sell your baby stuff on craigs list in your area. You pick a day when both you and your husband are home, like a Weekend, and you post a list for mom's to see what you have and where you are. They can call you ahead of time and set an appointment of a time that is good to meet at your appartment. (When Husband is home, and dog is barking.) I had a nice mom come over and go through all my boxes and give me more than I would have gotten at a yard sale. In that situation I could price the nice brand names at a higher cost for the first person, and if she didnt bite, the next mom who shows up might get a lower price.... and so on. Most mom's who came bought $10 worth of clothes. A Dad came by and bought all the equiptment, the bouncer, the swing, the spongy seat and such and paid $30 cash. That is better than yard sale prices. And YES you can do this in the privacy of your apartment. That is why it is so important to have someone home with you. I had my neighbors come over every time, since I am a single mom, and I have the cops on speed dial just in case. But I did make enough money to buy the entire next size of my son's wordrobe, and nothing bad ever happened. I say go for it!.