This isn't something everyone would want to do, and a lot of areas don't have a center. but in Riverside, CA (so cal) I use to donate Plasma 2x a week. Not so much because I needed the cash, I knew it helped people with the medicens and such they make using it. The money though was a nice bonus. It works like this
1st time of the week $20
2nd time of the same week $25 bucks
up to 8 a month, so long as you're healthy and your water levels are high enough and your blood isn't to thick. (can be if you eat lots of fatty foods)
if you donated 8 times in 1 month they'd generally either give you a bonus $20-$30 bucks, or you'd be entered into a drawing to win anything from a TV to a Louge Chair to a full Turkey Dinner for 8.
I don't like needles, but some of the nurses there were so damn good I hardly felt them go in. I also liked the fact I got a free yearly physical, I didn't have insurance so that was nice. And they ran all your plasma donated threw tons of tests before sending it off. so I knew I didn't have any STD's or whatever else can be detected checking blood. They'd run me threw a quick exam before ever donation to make sure I was in good enough shape to donate. Was good peice of mind.
I started just to get a free physical, but I started to go 8x a month (2x a week) Would average around $200 a month, with the bonuses, $185 was the min for 8 donations.
Also free punch and crackers and cookies after the donations. Process took around 2 hours from walking in, to the point the needle was being removed from my arm. Got to relax on a comfy couch and watch a movie. And it is a good deed so maybe it'll help my Karma one day

Only down side, I haven't donated in over 2 years and my right arm still has this weird look scar (hole) where the needle always was. People wonder a lot if I do drugs haha
Sounds like this lady at work is in need of all the help she can get, if she's too proud to ask, tell her to go check into donating Plasma.