Anaamika, here’s some other hints i’ve found that help in long distance cycling…
increase your bike’s visibility both front and rear by adding some LED flashers to your bike, i just added the Blackburn Mars 3.0/Quadrant lighting combo pack to my commuter bike, the Quadrant is a bright white LED headlight with 3 modes all on, side LED flashing, all LED flashing, the Mars 3.0 has 3 modes, all on, flash, chase
the headlight isn’t powerful enough to use at night on a pitch black road, you need a minimum of a 10 watt Halogen for that, it would be okay to use in a town or city with streetlights though, i use it primarily to increase my visibility to cars, i have both lights set to flashing even during the day, and i’ve noticed traffic passes me with a wider safety margin, oncoming traffic will steer away from me at a greater distance than without the light, same from traffic approaching from the rear…
increase your visibility, during the day wear light/bright clothing, in the evening, have some form of reflective clothing/accessory on you, assume other drivers are; A; idiots, and B; don’t see you, a driver could appear to be looking right at you when in actuality, he’s looking through you and you don’t even register in his mind
stay hydrated, drink water/energy drinks even when you’re not thirsty, the best way to do this is to use a hydration pack (backpack with soft water bottle “bladder” and hose with a bite-valve), the most popular Hydropak is the Camelbak, there are other brands, but i personally like the Camelbak, very well built, solid, and built to take a beating (mountain bikers wear these and have fallen on them and the bladder almost never ruptures, it shrugs off the fall like nothing happened)
i have the Camelbak M.U.L.E. and it’s a great pak, 100 Oz resivoir, and lots of places to store tools/clothing/sunscreen/etc, in it’s compact form, it takes up very little space, yet it expands to hold a lot of stuff, it might be overkill for your ride, but i don’t think it would, really, i started off with the Camelbak Rocket but it just didn’t have the storage space i needed, it barely held my toolkit and a couple of PowerBars/PowerGels…
the Camelbak will also satisfy the “wear a reflective accessory” reccomendation as well, as both the MULE and Rocket have reflective trim on them (i’d assume most 'Baks have reflective trim…)
Carry a set of tools with you, minimum of a patch kit (for flat tires), tire levers (to get the tire off the rim) and a small air pump, i carry a Park Tool mini-kit in the Camelbak, as well as a mini-pump, some sunblock, a first aid kit, some energy bars and energy gels…
i typically carry the following in my 'Bak, as it weighs practically nothing, the water weighs more than the cargo…
outer zip pocket; energy bars/gels, my cell phone when doing road rides
second zip pocket; Park Tool tool kit in nylon zipper pouch, small zip-pocket first-aid kit
mesh netting compartment; Bullfrog 40 SPF pump sunblock
main pocket; spare t-shirt, small towel (never forget where your towel is, very handy for avoiding those trailside Ravenous Bugblatter Beasts and scaring away Vogons) light raingear in “iffy” weather
have a stash of energy bars/gels in your backpack / Camelbak for the long rides to avoid “bonking” or “crashing” (burning thru your energy reserves and running out of energy), also, hide a couple of energy gels behind the CB bladder “just in case”…
and most importantly, have fun, biking to work is something i wish i was able to do