I work full time and earn about $75-$100/month. I do not really use sbs at work, only at home. I have been using swagbucks for about 3 years and have earned 271,967 sbs in that time. That's somewhere close to $2700 in rewards.
What to do to earn:
1. install the toolbar. I use it religiously.
*You can run SBTV from it. It will open a separate window that I just leave open and run on the side. I think the daily limit is 150 sbs. I've only hit the limit like once.
*It has a link for shop & earn. If you are shopping online, it will alert you if that website can earn you sbs. I earned a bunch this way before Christmas.
*Has a link to check for swagcodes. You just click on it and it tells you if there is a swag code available and where the code is located.
*Has a link for the encrave activities. These are super easy. You just click through some videos and let them run for a short time.
2. Do all your searches through swagbucks. Mine is my default search engine.
3. Attempt the surveys. You can get 1 sb for getting kicked out of a survey (up to 5 sbs per day.)
4. Play the games. You can earn 10 sbs from games. (Some of them are even fun!)
5. Answer the daily poll and click through the NOSO for a total of 3 sbs.
6. If you print coupons from the web, print them through Swagbucks and get 10 sbs for each coupon redeemed (I have never actually done this one.)
7. Earn x amount of sbs/ $ spent at various websites through the shop & earn tab. This one is great if you shop online a lot anyway.
8. You can do tasks, but I find them to be stupid and they rarely credit. So I don't waste my time.
9. SBTV Mobile- download the app on your phone or tablet and let it run. You can earn 50 sbs a day.
10. EntertainNow Mobile app- works just like SBTV moblie. You turn it on and let it run through videos. You can currently earn 40 sbs a day. This one the amount you can earn per day seems to vary vastly. At one point you could get 120 sbs/ day.
I get a majority of my sbs through SBTV mobile (50/day), EntertaiNow (40/day), and SBTV on my laptop. I usually let these run in the evening while I'm watching TV or web surfing. Occasionally I'll have a really good survey day. I think the most I've earned from surveys in 1 day is about 900 sbs.