Thanks for all the replies! I didn't know this thread was still going!
I think the bun/hairnet combo looks kinda tacky. So...
I bought myself a bigger helmet! Lol! I normally wear a 6-3/4, and bought a 7-1/8, though I could have gone with a 7-1/4! I can get all my hair in, I just have a big head when I'm done.
I settled on a braid (NOT a french braid) flipped over, then curled flat along the top of my head... think 'snail'. It...works. I guess. Not very comfortable though!