Sub feeds are important tools Grainchek uses to collect events from other feeds. One way a Grainchek user can organize a day into an itemized bill starts with building a feed that contains all events with no start and end date possible called a General Feed. Then a separate feed, maybe called Billable, will not include any tasks. The Billable Feed will only contain sub feeds: one for every billable category. When setting up each new sub feed the user will select the user’s own profile, the project and the General Feed. Then only the tasks for this billable category will be selected. Each sub feed will accumulate the time spent on only the billable tasks it is setup to collect. The Billable Feed will accumulate the time from all sub feeds. In order to itemize a single day the General Feed start and end dates are set to the day to be itemized. In the Billable feed, each sub feed will accumulate the events for that billable item for the one day that the General Feed is set to include.