The ability to create maps easily with simple drag/drop features in GrassGis 7 are very helpful when mapping out new areas or projects I am working at this time! Nothing really but it's great software if you have never used any other map making program before like Qgraphicsviewer (QTV).
It has made my life easier by doing all those things mentioned above plus adding layers which helps me organize multiple documents better so no more having stacks everywhere just one file folder away from everything else needed as far back tracking goes too easy now using grass7!