start throwing stuff out

Recently, I've learned how to tidy up my room in a better way. I usually got stuck and lost when I don't know where to put my stuff or when I ran out of room. My classmate told me that when that happens, that's a signal of throwing stuff away. Keeping this "theory" in mind, I had the following conversation with my honey.

w: oh... there's new lego @ toysrus!
m: you are not getting new lego unless you throw away the old ones
w (in shock then calm): okay, i'll buy it and leave it in your room XD
m: no, i don't have room, and eventually, we'll have the same room
w: then let's buy a new shelf
m: you have to throw away the old shelf so that you can fit the new shelf
w: what about we lift up the bed and insert a new shelf underneath! just like what i have in my room now XD
m: no way... if i am pregnant in the future, i am not climbing up the stairs for bed every night!!!!!!!!!!!
w: we'll invent sth that we just need to press a button then the bed and the shelf will switch.... *smart*