Andrew, two things:
1) DO NOT donate it Locks of Love. I actually considered this myself for a time when I was delusional enough to want to cut my hair, but it turns out 90% of the hair they receive goes in the dump. Only a very tiny percentage of children with cancer actually receive a hairpiece from LoL. There are tons of websites out there with the real information behind that org. They're not scheisty by any means, but the truth is they get way too many donations to utilize them all. Find another organization to give your hair to.
2) Cut your hair and you'll have no excuse to not try jiu-jitsu. You should give it a go man, I know you'd love every thing about it.
Cheers!