Lasers are great! You can wear them out quickly! Spin them in circles, up and over things...I had my two chasing it on my bed last night until they both lay down panting and went to sleep shortly after...it was great!
That's part of the fun of having cats living in your house...watching their goofiness!
All cats go through the "annoying" stage though (sometimes two or ten times) and believe it or not, you will miss it and this stage will be what you remember when your cat gets older.