If you store stuff with her, make sure that it goes into any agreement you make that she's just storing it and you will get it back. Otherwise you run the risk of her getting angry at some point and saying that you abandoned it. Also, make sure that you don't store anything that you don't mind her going through because she probably will.
You sound good. I think it's great that you're taking the kids on Wed and making plans for the weekend. By the way, she's telling you about her money issues because she probably thinks she can get you to pay for it. Glad you're not falling for that.