While a dual window Finder is great, Yoink is nirvana. You know you want to move/copy this flle ….somewhere… Drop it into yoink and there it will stay until you decide where it has to go. Add 2..3..4.. files into Yoink. No problem. Create a new folder and then drop all the “yoink’d” files into the folder…Of course! Two files into this folder, three into that one? No problem. Want to copy, not move? yes option-drag works just fine. I set the preferences up so that the yoink window appears near the cursor as soon as I start to drag. Nice. And if it gets in the way, (power tip) F5 makes it disappear. Or appear as needed. The best apps do simple things very well, and Yoink exemplifies this.
xmarc999 about Yoink - Better Drag and Drop