I do that sometimes, yes.
But for my work-late habits, it slows me down so much. By parking my car at Aldershot, I can have a complete end-to-end cubicle-to-swimming-pool time of 1h25min (Record: slightly less than 1h20min, with the 6:30pm express) when the freeways are flowing well to Main-King and then I go through all the synchronized traffic lights without a red light, as I live only a block off the Main-King artery. That's not possible if I have to catch a bus from Aldershot; it often end up bcoming 2 hours or more total commute time. I like having a predictable commute-home time, and the 6:30pm express is my favourite, since the freeways are usually flowing faster or fully by then, allowing the shortest commute home. I try to stick to the 930-to-530, but since I leave work after 6:30pm two times a week (and sometimes every time during deadlines, well past 8pm), it works in my favour to drive directly to Aldershot since my average home-to-Aldershot is a 13 minutes from train disembarkation to parking in my driveway. I sometimes save an hour not taking the Aldershot bus, especially if I missed the GO bus because I disembarked the train at the opposite end, waiting for the next GO bus, and having it take almost half an hour to get downtown Hamilton. Also, it's not as desirable in the wintertime -- I usually board near the Bay teamways, which when disembarking, puts me far from the Aldershot tunnel to the terminal building/GO bus, where the eastmost coach directly leads me out to the Aldershot south parking lot, very close to my car (50 meter walk in many cases), and no reserved parking needed as often required in downtown Hamilton. And I've bumped into a lot of Hamiltonians in the Aldershot parking lot, that I get a distinct sense that more Hamiltonians board GOtrains at Aldershot than downtown Hamilton...
Not to mention, I usually have my alarm set to 7:15am and I board the 8:08am Aldershot.
7:15am is the departure of the last GOtrain from Hamilton -- I'm still asleep!
The 8:08am is sometimes extremely popular, I've occasionally seen it mmediately get a quarter-full sometimes on departure from Aldershot. (Another justification for JamesNorth+StoneyCreek). My alarm is set to the same time as the last Hamilton GOtrain, so the morning departure times are mostly useless to me, unless I have to go earlier into the office. Allday service can't come soon enough to Hamilton.