Useful Tips to Stay Creative

If your job or hobby involves any type of creative activity, you know how difficult it can be to stay fresh and bring new and original ideas to the table every day. Thankfully this list of one-liners is worth keeping in your back pocket for the next time you feel run down or you're suffering writer's block.
Whether you write for fun or profit, do graphic design, paint, draw, or make music, you know it can be difficult to come up with new and original ideas every time you have to start a new project. Over at Paul Zii's Tumblr blog, he has a list of 29 great one-line tips to help you stay creative or get inspired if you're feeling the sting of writer's block, or your muse hasn't visited in a while.
Most of the suggestions are fairly esoteric, but they're good to remember even if you're on a creative roll. For example, surrounding yourself with creative people is always a great way to find inspiration through other people who are already inspired. Getting feedback is another great way to continue the creative process, and it's highly underrated: getting the opinion of the people you look up to or the people who edit your work is a great way to find new areas to explore or challenging topics or material to try.
Another important thing to do when you're trying to stay creative is to allow yourself to make mistakes. Not every article you write will be a hit, and not every painting you paint will be a masterpiece. Not every comic you draw will be funny, or stand-up routine a smash hit. Still, the important thing is to try new material fearlessly and learn from the experience if it doesn't go well. That leads to another great tip on the list: Don't give up.
The list has 29 specific tips, some of which are more helpful than others, but they're a good read. What are some of your favorite ways to stay creative or motivated when you start feeling down or uninspired?