Hi Mary --
As a wavy-haired person, I acknowledge I'm partners with my hair, not the boss of it. [Given my controlling tendencies I actually find this is a good thing -- the world won't end, I don't get stupider, I'm still funny etc etc even if my hair has a wayward day.]
However, 4 things make for a better-looking partnership:
- Cut
- Hair health
- Product(s)
- Weather
1. As a few have said upthread, your cut probably isn't optimized for well-behaving waves/curls because you've been wearing it straight the majority of the time. Dry cuts with an experienced stylist are the way to go if you want to maximize volume, flattery, and good hair days.
2. [Ignoring diet/health issues that can affect hair health, but these do matter] I dye to cover grey (damaging). I do the "low-poo" (fairly beneficial) so you're ahead of me with the no-poo. I air-dry the majority of the time (beneficial), use a diffuser and no brush when I do heat (lower end of damaging), and don't use chemical or heat straighteners, curling irons, or brush/blow dry (damaging).
I've read the suggestions to just alternate between straight and wavy looks, and that's fine -- but you'll never get the same performance and predictability out of your waves/curls if you do that.
You have to think of your hair as like a thirsty plant -- when you starve it of moisture via drying/straightening it's not just going to bounce back to a lush shiny state the next day.
ETA I've seen some AMAZING transformations on naturallycurly.com when women chose to commit to waves/curls all/the majority of the time.
It can totally be a PITA to transition to your natural texture (BTDT) but my very thick, very coarse hair is so much softer, shinier, and yes, more manageable since I embraced its natural texture several years ago (if not its natural greys!).
3. I hate product, personally. And I hate experimenting with products, especially as what ends up working the best never seems to match up to recs for my hair type and length! But I have a couple that work in different weather conditions, and yes -- product can add to or detract from ease of management.
4. Whenever I visit SoCal I'm in heaven. Instead of dealing with PNW damp (hello, frizz and slow-drying hair!) I can shower, add product, and have air-dried movie star waves in 40-60 minutes...and if I'm near beach air they just get a little plumper.
So if you want to nurture your waves, I think you live in an IDEAL climate to be 100% wavy all the time yet still have a high degree of control over the end result. #ENVIOUS