Home Remedies For My Problem?

[Skarecrow]

I am a new official, and I found myself in a quandry the other night. My partner called for a white out-of-bounds, knocked out by black. Black called a timeout, and we administered it, went to our spots, and waited for the one minute to pass. My mind was filled with recent plays, calls, etc.....anyway, we both forgot whose ball it was. We knew that black called the timeout and that kinda of confused the issue. Any specials ways, tricks, or home remedies to help to remember that, other than the book? Thanks, ahead of time...Skarecrow