When working with large datasets in Google Sheets, combining cells is an effective way to organize and present your data. Highlighting the cells you want to combine and then clicking Format > Merge cells > Merge all or using the Merge cells icon in the toolbar achieves this. Google Sheets automatically realigns text to the middle of combined cells and preserves data values from top-left cells if multiple cells contain data. To unmerge cells, click anywhere in the combined cells and tap the Merge cells icon. The mobile app version allows for similar merging functionality by tapping the Merge cells icon. Automating tasks with Zapier can also streamline spreadsheet-related tasks, such as notifying teammates or turning new rows into tasks in project management apps.