I was inspired by a fellow member on my long hair forum who has hair about my length, but purple. It's mouthwateringly gorgeous! Unfortunately, I could never pull that off & I have a distinct fear of bleach, so that'll never be, excluding wigs. :sits up suddenly - "Hmmm...": So I splurged on some Manic Panic vegetable-based semi-permanent hair dye. Semi-perm meaning it should stay 4-6 weeks. I had a friend help me put in some streaks & SIL Shelly rinsed it out for me. No bleach, just the colour over virgin hair.
I loved it while it lasted, all of about 2 days.  Tops.  I do have more but it's a lot of trouble for one day of colour.  I'm toying with the idea of bleaching (!!!) two streaks - one at my left temple & one above & behind my right ear - so that I can have funky colour there.  But, there's the whole bleach damage/maintenance thing.  Not sure I'd like the long term effects.  I've tried to find clip-in extensions, but the longest reasonably priced ones I can find are only 18 inches long.  That's half the length of my hair.  I guess I just need to start saving all my shed hairs & make a clip-in extension of my own that I can bleach & colour.
My ends.
My naturally lighter ends took & held the purple better.  I can still find some slightly purple-hued strands here & there when I'm searching for split ends.  If I use my imagination...