Create an Excel Spreadsheet for tracking projects and comissions

I currently do some freelance work which involves a base salary and bonus for a number of different projects. I will often be working on between 10-15 different projects in a month, and would like to create a worksheet that will allow me to easily keep track of my hours, commissions, and then total pay for the projects. Specifically, I would like to be able to input: Project Name Time In Time Out Hourly Pay ($) Number of Items Item Bonus Amount ($) and have the Excel sheet Give me a duration of hours as either a decimal or time (.75 or :45 for example) Have a formula to calculate base play plus bonus for a time period Display an overall project pay by adding together all the time periods for a specific project Add these projects automatically without me having to input the names in multiple places Please contact me with specific question or if this is unclear. Thanks!