I really like the condiment bottles; you don't have to exert much pressure and get a nice gentle stream that doesn't disturb the seeds as much.
I bought a bunch of the plastic plant labels. Since they're just for identifying seedlings in the GH (as opposed to permanent plant labels for perennials), I can use them for several years. A bit of fine sandpaper cleans them off for relabeling (also with a mechanical pencil!).
