Only loss today was a void ray rush. Watched the replay and I could have cleaned house if I had only scouted it.
Also nearly lost to a baneling bust except I intercepted it halfway to my base and killed all the lings which were apparently coming to do the runby after he broke my wall. He still exploded his banelings into my front door (I assume they were camped near my base while he massed lings), but I had already marched into his base by that time. I think he would have done better turning his banelings around and destroying my attacking force. He had more than enough to do it. Kinda dumb to waste a large group of banelings with nothing to do any damage once the wall was down. Still, I didn't win because of any brilliant ability so much as dumb luck pushing out right when it was most inconvenient for him.
All my problems are due to lack of consistent scouting. I run an SCV into the enemy base generally after I build my first supply depot. If it survives I sit it outside their base and run it back in a couple of minutes later. Still, I rarely seem to see anything of use to me. In my loss to the void ray rush I see that my second scv trip into the base happened right when he was warping in the starport, so all I got was a warp ball on my map that I assumed was a second gateway at the time (my scv died before I could check). After that I got caught up in my macroing and didn't think to send another scout. I know scan are easy scouting, but I hate to use energy on scans when I fell like I need it for mules more. Nevertheless a scan at the right time would have won that game for me I think...