If you're making a deck close to ground level can you skip the beams and have doubled 2x10 rim joists connect directly to 6x6 posts? Is it kosher to notch the 6x6 twice at right angles for the corners? How about for a T connection where a middle beam/joist meets the middle of a rim joist? I think this would require notching the outside of the 6x6, rather than the inside - is that OK? If the notching is a bad idea, are there appropriate Strong-tie or other fasteners for this that do not cost a fortune? Thanks for your help!