Clock my dear, you don't necessarily need those earplugs. If you get a cool cap (TE sells some funky ones ) and pull it over your ears properly, you don't always get water in your ears.

If you haven't worn a cap before & worry about it pulling your hair: Jump into de pool w de cap, put de cap under water, throw some on yer head, throw de cap on your head..voila..!

I feel a bit like the swedish chef..must go and find the "chocolate mousse" skit