I do have a water bladder with drinking tube, but have only used it for mountain marathons (moving for about 5 hours on each of 2 consecutive days) in hot weather.
I have never used it for cycling, as I can attach several bottles to bike, and fill up if I need. For a 30 minute regular commute up a hill, I drink before and after, but not during. For a 1 hour / 11 miles bike ride on Thurs evening (cool, dark by start of last bike trip), then 6km run, then 1 mile bike ride to pub for 1 pint of beer & casserole (chosen for salty fluid as well as potatoes & sausages), then 11 miles back home, I carried a 500ml bottle and drank some before running, a couple of sips during, and finished it after run, knowing we were heading to pub.
It all depends how energetic you're being, for how long and how hot it is. The drawbacks with bladders & tubes is that they require more sucking than sports bottles and you have to wear them in a rucksack, which can be hot. Plus, if you put anything other than water in them, they need very careful cleaning and drying before putting away. Even with just water, they need to hang to drain out any drops. I would have used one if I had one when I did a 5 day kayak trip along Caledonian Canal, but just carried a couple of water bottles in the cockpit where I could grab them for a sip when convenient and drink lots at midday meal break on land.
While the water from the garage would have met your water needs, you might have needed salt, which is easiest to have in a packet of crisps, for example. Also, why pay for water? If you have a bottle, most places will let you fill it up if you ask nicely. Rural pubs are particularly helpful, in my experience - they often have taps in gardens / car parks, and will give water for passing runners / walkers / cyclists / dogs etc.
my hubby suggested maybe a hydrapak camel pack which is where you have the fluid in back pack and straw coming round so have constent water if needed . Do any of you serious cyclists use these ?