i noticed on Optimum's website (nicely re-done) that they offer poli-seal, etc., in the 8oz sizes (as seen below). are you going to be carrying them at any time (a little cheaper for those who won't use up 32oz's any time soon)?
You could get these like that above and give away as gift sets at X-mas time. Or it's also the perfect to go size for flying around the world and detailing!
I'd pick up some 8oz sizes of the Polish and Compound, and Opti-Seal. ONR Give me the gallon!
Just go with the 32oz. Optimum has not let me down. Once you try them you'll be wishing you had spent a few more dollars on the bigger size. It would make a nice gift set though.