Yes sure. I use this as a log for my work: an input form with a text field, a number drop down list and a category with it. So: worked two hours website customer x, 2 hours drop down list and category "webdesign".
So I want to have an overview per week hours worked per category. I want to type webdesign there in a text field; press button and then see the hours worked per week for webdesign there.
Real simple in basic. Cheers!