Iīve had spiral curls perm twice and it ruined my hair (and I have very strong hair), so I donīt recommend it. I had to cut my hair eventually to make it look good again.
I use clip in extensions. Itīs easier than it looks, only takes me about 10-15 minutes to put in and it looks very natural. Hereīs where I bought mine, these are great quality and human hair:
http://stores.ebay.com/WICKED-WARES-...air-Extensions