Beginning July 1, the SR 520 toll rates will increase between 20 cents and $1 for vehicles with two axles, with similar increases for vehicles with additional axles. The rate of increase depends on the time of day. Drivers with a Good To Go! pass will continue to pay the lowest toll rate on all toll roads (more information in the comments section). The peak period hours are also extending, drivers will pay the peak toll rate when crossing the bridge between 7-10 a.m. and 3 -7 p.m.
I started commuting to the east side from Seattle two days a week. I'm doing the 6am - 7am and 11am to 2pm slot in an effort to save money, then working a couple extra hours when I get home in the afternoon. It really is getting out of hand if you aren't flexible with the hours you can get in or out of the office.