I'd like to be able to use Query Builder (Filter/Modify) to pull a Summary dashboard part instead of having to clog up my system with a saved search for something as simple as "Request Disposition = Pending". 

Currently you have to use a Saved Search with a Summary Dashboard part, which seems counterintuitive since I'd think the primary purpose for that part would be to quickly view something based on relatively easy search criteria like "everything paid last year" or "everything paid this year in a particular focus area".  I'd prefer to keep my saved search list for more important things. 

Same goes for my light users.  I don't want them either creating a bunch of one-off private saved searches I don't have access to or clogging up everyone's saved searches with shared saved searches for something so basic just so they can use a Summary Dashboard part.