Many workers are hourly employees and need to record what hours they are working - some timesheets are simple, just asking the employee to put the number of hours worked. Others are complex - asking start and stop times, lunch breaks, type of work done, etc.
Simplifying timesheets can make them more accessible.
For the more complicated timesheets, I think it would be great to create some sort of app that let employees take notes on what work they are doing so they have the information to fill out the timesheet later.
Also, for some people handwriting in the sheet can be physically difficult. An online version should always be an option.