One mistake I see people make who want to get more organized is, not thinking about tomorrow. Meaning, they look at the amount of stuff they have, they look at the amount of space they have to store said "stuff," and they take a freeze frame of time. They think that if it all fits now, that is enough. They don't leave room to grow. They don't think about tomorrow. But then time passes, life happens, and they are suddenly looking at some very pricey organizational tools that are now buried under a lot more stuff that tomorrow has brought, because they didn't thinking about leaving room to grow.

It's a rookie mistake, but also very much a part of human nature, focusing on the present and not thinking about tomorrow, especially when it comes to all our stuff. But it is an important over site. A key to being organizing is having enough room not only for everything you have now, but everything you will acquire in the future.