Having to start chemo next week do i let my hair fall out or do i bite the bullet and go visit the barber?

Depends: First, different chemotherapies are associated with different rates of alopecia (hair loss). A common breast cancer regimen -- AC (adriamycin, cyclophosphamide) -- universally causes hair loss. If your hair is starting to fall out many people would rather shave it and use a head cover or wig.

Wait: Whether from chemo or radiation the timing can vary as to when hair will fall out. Once it's obvious go to the barber and look into wigs, caps or nothing at all based on your preference.

Check with your MD: Not all chemo causes hair loss. Some drugs will cause hair thinning, some will just slow the rate of growth and some have no effect on hair. Check with your oncologist about what you should expect.