SideKick is an Excel Add-in that lets you perform mathematical calculations on your selected data. SideKick can ignore blanks, formulas, and dates so you don't have to spend time sorting through your cells with the mouse and Ctrl key. SPECIAL DISCOUNT FOR NEWSLETTER SUBSCRIBERS: Since you signed up for my newsletter, I want to offer you an over 80% discount on this product and knock the price down from $37 to $7! Thank you for subscribing and I hope you enjoy the SideKick add-in :)