I really wish bookmarklets caught on more. They can provide a lot of the value of extensions, without running all the time and bogging down the browser (or tracking the user around the web). The lack of persistent tracking is probably what led companies like Amazon to abandon them.
I wish firefox would let the wonderbar '*' search feature work with bookmarklets... As it stands I have a few I'll never use because they're 4+ clicks away with no typeable shortcut.
You can define a keyword for this, eg. ctrl+l - `ks` (kill sticky) - enter. It has some backwards because you still can't search by name and you have to remember the keyword and there is no auto-complete, but once muscle memory gets used to it, it works pretty well.
I use keywords for bang searches (!keyword search term) and bookmarklets too.
I wasn't aware of 'keywords', thank you! Shame there's no completion / easy list (I think?) for things I'd rarely use, but I'll give it a try for a couple and add more progressively if it works well.