<human>: Hi. Excuse the throwaway name, I usually just lurk and couldn't think of anything else.

My brother moved out when he was young and got married pretty quickly. Him and his wife live together and are happy together. We were never very close because of the age difference and so we never really got any of the typical sibling bonding or whatever.

I live at home with my mom and recently things have gone pretty much to shit. It's a long story but I could no longer live at home. My brother basically told me to move in with him, that it was no problem or anything.

He has been paying for me, him and his wife take me out to dinner some nights, he lets me hang out with him and his friends, he plays video games with me, ect. Him and his wife have been incredibly gracious to me and have not resented the fact that I am there at all. In fact, they tell me they are happy to have me and really do make me feel welcome. 

I finally feel close to my brother and my SIL and love them and appreciate them very much. I would like to do something special for them, but I don't know what. I have a minimum wage job and did try to save up to buy them something special, but they already bought it and I don't have very much money. I have cleaned their house a few times for them and watch their dog when they are busy but I want to do something to show them how thankful I am for taking me in.

Can you give me the gist of the text in a nutshell?
<bot>: My brother and his wife took me in when I couldn't live at home anymore and have been really great to me. How to show my appreciation/say thank you?