You can use the 'half hitch tool' end of your bodkin too, if you have fingers that hold onto thread. (i.e. really dry hands with cracked skin)
I have run into issues with half hitches being 'not quite enough' and frequently use my whip finisher and do about 2 turns to secure the thread before spinning on dubbing, etc. Easier for me. I have an easier time placing the thread with the whip finisher.