Sometimes i think i'd just be better off with a gigundo MyStuff.rtf document and clip everything into there and then just search it and build some filemaker or whatever relational dbs out of stuff in it later on.
But, I have used NotePad Deluxe ( i think that's its name, it's on another machine) and also Yojimbo. My problem with both is failure to remember to use them often enough to remember i have them. Sometimes I think I have major case of CRS. Other times I know I just don't give a damn, I'm perfectly happy clipping something to a file and dragging the file to some folder(s) created to house my junk for a project.
I remember liking Notepad Deluxe for ability to create separate databases for major categories (News and Politics / Music / Fabrics / Scribbles ) and pop back and forth among them. An optionally floating menu IDs what they are so you can click one open. Inside each DB, there can be Topics like folders, and individual notes. It handles assorted image filetypes but I'm not sure what else besides dragged or input text. Some releases seemed a little glitchy or slow but the last one I installed was great.
I do kinda like Barebones' Yojimbo for being able to select stuff off a page and just drag it to that tray tab, it simply gets a datestamp and is tossed into the db with some default categorization if you didn't drag it to a specific folder. You can sort it out later or just search. You can encrypt items. I am a little reluctant to use the thing on my main workhorse computer because I haven't really looked into how it handles edits, saves, trash, etc with respect to metadata and encrypted data. Trying to develop attitude that there's no such thing as privacy anyway, but I'm def not there yet.
What I hate about all of these notetaking apps is their proprietary db formats. Such that if they don't migrate their app up to your next OS, then eventually you have a problem unless you decide to dedicate a computer and backup media and a frozen OS to the thing for as long as you figure to need the data.
If you only need the stuff for a couple of years that's not really a big deal.