Timesheets turns check-in and check-out into a two-tap action, whether it's done from the office, the portal, or the FlowTix driver app in the field with no signal at all.
Every entry can carry the client it was worked for, free-text notes, and can be corrected afterwards if a check-in or check-out was missed - no spreadsheet, no end-of-week guessing. Because entries are tied back to Contacts, hours roll straight up into project costing and invoicing.