*And* on a backup CD/DVD/USB key hopefully, or else you risk losing everything in case of a hard drive crash.
I only lost two maps when mine crashed, but they represented 2 weeks of work and I still can't bare to recreate them yet a few months after the fact. Be smart, unlike me.
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"With the first link, the chain is forged. The first speech censored, the first thought forbidden, the first freedom denied, chains us all irrevocably." [...] The first time any man's freedom is trodden on, we're all damaged. - Captain Jean-Luc Picard
B*tch, meet reality. Reality, meet b*tch. - Me