Inspiration is another grand excuse, "I'm not inspired to write." So, what you are really saying is, "I'm in a lazy mood and don't want to write." Just say that. Inspiration is everywhere, IF you allow yourself to accept it. The other day we had fog roll in over a snow packed road and it was magnificently spooky, so I sent the hubs out to shoot a few picture for me. I prowl old photo albums and now online albums, pictures are great-I wrote a story that was set in the Keys and old Bahama Islands, and all around me I had taped pictures of beaches and shells and three masted ships. I listened to beach sounds on CD...until I had a feel for where I was taking that story. Music is great inspirational material. Again, you have to decide what's right for you. One of my writer friends has this loud, obnoxious, electric chainsaw meets car wreck type of music and another cannot listen to anything with words. Mine is whatever trips my trigger on that day.
The biggest thing is to rid yourself of the word 'can't'. Life has enough roadblocks without throwing more in your way. Find the trick that works for you and write.