Visiting a local museum can be a great creative spark to keep your designs on fire. Museums today are not what your mother saw 30 years ago. Today, the range of work that you will find on display at a major art museum goes from the classics to modern to design to graphics to sculpture to photography. What a wonderful mix. Take along a camera and shoot what inspires you for inspiration later. Look at the details of these great works, study them and think how you can bring these ideas into your own work. I try to visit my local museums in LA on a very regular basis (I am lucky to have so many wonderful museums nearby) including LACMA, MOCA, The Getty, The Norton Simon, and OCMA. Go out and get a membership, they are very well priced and a few visits during the years will cover the cost. Take the day, go visit a museum!