Try and book yourself on a Look Good Feel Better course if you can. My hospital runs them once a month and there's usually 8 ladies taking part on a 2 hour workshop. You get taught how to do eyebrows etc but the best thing is that you walk out with a goodie bag full of pretty decent products like Benefit mascara and Clinique cleanser etc. I think I looked up the prices of the products afterwards and they came to about £150 pounds (maybe more)!
Just be aware that you won't get cosmetics totally tailored to you, you will get a bag labelled fair, medium, dark etc for your skin tone with set products in each one
As to wigs, I think it has to be a totally personal decision which only you can make. For me, the very thought of wearing a wig makes my skin crawl and I never looked into getting one. Tell a lie, I did look on the Smiffys fancy dress website and bought a long blonde one as a joke for my Christmas party!
I bought a handful of cheap scarves from Anna Bandana on line, the best ones being a jersey scarves that were already 'tied' at the back so that you can just pull them on and off without having to retie them all the time. They make hospital appointments easy when you're having to whip your top off.
I never really went commando but when I had about 3mm or so re growth I was so sick of covering up I went bare when I left the house.
As to work, everyone on hear knows about my woes with my boss and the company sick policy but in short because I didn't think I was going to be getting sick pay, I worked through chemo. Ie I had about 6 work days off each cycle and then went into the office. It was doable but had I been given the choice of time off I probably would have done less.
Again, I think it's up to you as an individual as to how much of a normal life you lead during chemo. When my SIL had chemo this time last year I assumed that she would be housebound and that we couldn't visit etc, but when I went through it I really found that in my good weeks I could function pretty normally. I went out for dinners and met up with friends.
I probably would have drawn the line a getting on a rush hour train into London or a packed tube train
Finally just picking up on Lily's comment, my skin never looked better than when I was on chemo! I guess it's something to do with the effect the drugs have on fast regenerating cells. I was always having people tell me how well I looked (even when I was feeling s*e)