Get rid of clutter: It seems that we live in an epidemic of hoarding. It might feel safe to have a lot of stuff, but in the end it gets in the way - figuratively and literally. It is actually quite tiring sifting through stuff to find the actual important things you need, so it would be good to take some time this summer to look at everything you own and ask your self if you need it or not. One trick I got from the Minimalists podcast is to take everything out and then choose what to put back in. In that case, you are realising that you need to make an effort to keep things - which you actually need to do. It is hard to realise it at the time though.
Get rid of digital clutter:
Make a place to keep your books: