H.B.
The mistake I made living with my mom (with my boyfriend and son) was feeling like a child and not holding my end. I payed for the cable and water, but I still felt like a child. In my situation I should've been paying at least $25-50/week for rent and then paid for most the bills since I was home the most.
My mom let me use some money here and there for last minute garage sales...it wasn't a good idea though because it was like using a credit card. I still feel like I haven't fully repaid her, but she says I did.
When children become adults, but still live at home with their parents...boundaries really have to be set, especially when their are younger siblings. It's so easy for us older siblings to get jealous (well in my case it was).
Communication is the key to all relationships!