A simple template to be used in various to-do lists for easier organization of solved and unsolved issues.

Check and cross marks
Check marks Cross marks
{{check mark}} YesY {{x mark big}} Red XN
{{tick}} = {{tick|20}} YesY {{cross}} = {{cross|20}} N
{{aye}} Green tickY {{nay}} Red XN
{{ya}} Green tickY {{na}} Red XN
{{check mark-n}} YesY {{x mark-n}} NoN
{{y&}} {{n&}}
{{Chk}} {{xed box}} X'ed box
{{checked box}}

checked box

Other marks
{{n.b.}} Nota bene* {{hmmm}} ????
{{bang}}
Most of the templates above are fully sortable in a class="sortable" table (each check mark is assigned an undisplayed "Y" and each cross mark an undisplayed "N").