Default Number of Opportunities Shown

Is there a way to edit the default number of opportunities shown in a list? Right now it defaults to showing 20 at a time and you have to scroll to the bottom to click the "more opportunities" link to see the next 20. I would like to change that to at least 100 by default, maybe more. I fully understand that this is querying a database each time since it's a dynamically built list but this has been a fairly constant request from my end users so I figured I'd investigate a solution for them.