Urge Jar

I love the idea of the urge jar and having a small journal to write down your thoughts as you get these urges. When I received it, my first thought was, am I supposed to carry this jar everywhere I go? this is going to be heavy to carry. It’s incredible how our my mind just find excuses as to why it would be difficult for me to use an urge jar while on the go. My question is, if you do not wish to carry the jar, can we use something else? I guess it doesn’t matter as long as we are using the tool to keep track of the urges.