I'm trying to create a report that shows Opportunities based on Amount and Close Date, and also based on Payment Amount and Payment Date. Unfortunately, you can't use "OR" logic between fields on different records. I discovered Joined Reports, and I thought that might be the answer to my problem. Unfortunately, it turns out the blocks in Joined Reports can only be displayed horizontally, not vertically, which means my users will have to scroll to the right to see the second block, which I don't think it going to work for us. 

Joined Reports should include the option of viewing blocks stacked vertically, rather than side-by-side.