- Add loading spinners and disabled states for form submissions
- Implement client-side form validation with inline error messages
- Add Enter-to-submit functionality for single-line forms
- Implement relative timestamps (e.g., '2 hours ago')
- Add character counters for textareas
- Auto-resize textareas as users type
- Add toast notifications for success/error messages
- Improve form accessibility with autocomplete and max lengths
- Add password confirmation field to signup form
- Better error styling throughout the application