This may well qualify as a Drupal cheap trick. But it is pretty darn useful if you ask me.
The use case - I have a custom content type for daycares. In it, daycare owners can advertize the number of available spaces they have at any time. Creating a list of daycares showing available spaces is, of course, easy with Views. But what if I would like to show the total number of available spaces for the listed daycares. How would I do that?
At first, it's not obvious. But after the usual searching spree, I found the perfect solution. The good news is you can do it all with Views - don't need a special module for that. By the way, my custom daycare content type contains various fields including an integer field for Available spaces. Here we go.
E.g. Total number of available spaces: [field_daycare_available_spaces]. where [field_daycare_available_spaces] is the token available for the field that holds the number of available spaces in my content type. Of course, this token will change based on the name of the field that holds the values that you want to add.
Got to love those cheap tricks...