One of the things I wanted to do in 2011 was to reduce the number of things I own and the amount of things I buy, particularly pertaining to wardrobe, but also bric-a-brac. I've always been frugal by nature, but living in a small space has made me realise that I need to question what is really necessary to own, and what is convenient. So far I am in a phase of planning and developing, list-making, sketching and discovering minimalist blogs (one of my favourites for fashion right now is Dead Fleurette); baby steps.
Earlier this year I also started budgeting, which I haven't done before (going mostly by gut feeling and bank statements – a dubious idea when you're living on sub-poverty line study loans), and I realised that by living this way I will actually be saving money, compared to when I was less conscious about every purchase, thus also focusing more on being ethical and environmental.
All the schemes I have laid out for myself are already explained better elsewhere, but I have one protip for cleaning out your wardrobe, especially if you get easily attached to things: Make a special heap for items you are not entirely sure about; the extravagant shirts that would be fun to wear for that one occasion, the dresses you never wear but keep for the memories, the things that are really kind of nice so you keep hoping to be able to pull it off one day. Put these items away, for example in a suitcase underneath your bed, or a box in the storage room. You probably have enough clothes to forget about the stow-aways pretty quickly. A few months later, you can look through your box or suitcase, and most likely realise you didn't miss these clothes at all. If you did, re-incorporate them into your wardrobe, and if not, donate them to charity or flea markets.
Next up is the bookshelf, which I am afraid will be more difficult to get through efficiently, and loose papers.