Use what you have or let it go. Using things up leads to less clutter. Do you have a bottle of something that was half used and then forgotten? What about something you tried several times but didn’t like, but also didn’t get rid of? Are there items you had to buy in bulk, but only needed one? Let these things go and free up space in your cupboards, cabinets, and drawers.
Resources for getting rid of these things:
When deciding what to keep and what not to keep, compare two items at a time. Do you like this item more than that item? Which one do I use more? Wear more? Feel better about?
Other helpful tips:
Identify your favorite things and make space to enjoy those things. This will probably require the removal of unused, outdated, and unwanted stuff. By reducing those possessions, your favorite things have breathing room, and you have less to organize and maintain.
Here are a few suggestions:
Our stuff has a value, but so does the space it occupies. Which is more important, space or stuff? I know it will depend on the item, but as a general rule, I’d recommend placing a higher value on our spaces rather than on our stuff.
Books are a great donation and accepted at many resale shops, like Goodwill, Savers, and Salvation Army. 
Some libraries may take them to resell also, but I recommend calling before loading them into your car.
Depending on what type of books they are you can donate to senior centers, daycare centers, nursing homes, or hospitals, but again, call first to confirm their interest.
Here are three websites to check out:
More Than Words
One word of caution, no one really wants old text books or encyclopedias. An option is to offer them to theater companies who may like them for props.
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