I have often purchased the Staples Brand Multipurpose paper by the case for my church. It hardly ever jams in the copier even in our humid climate and it produces clear colorful Sunday bulletins. I also use it at home.
This STAPLES paper stock is a good product at a very reasonable price--and I'm very particular about the paper envelopes I use: weight color texture. The above is fine in color weight taking the print well. Being lighter means you can print and stuff an envelope with several sheets doing a job with current U.S. Mail rates increasing. I've also purchased at STAPLES heavier paper stock which is more expensive. I do a lot of printing and mailing from my office here at home. The above also 'takes' color print well with a high resolution.