No problem...have a look at my
journal.
Granted, I had the advantage of old gravel and old filter sponges, but I'm now a fan of Microbe-Lift bacterial products and would readily recommend these to anyone setting up a new tank, who didn't have access to an old tank and established bacterial colonies. (There are other similar products, from other companies, but I'm not familiar with those).
I also used plants, which provided somewhere else for the bacteria to grow on and contributed to providing some nutrients for the bacteria.
I'm also aware that there are Forum members who don't believe these products to be effective, alhough my impression is that this is based solely on distrust and feelings, rather than any hard and properly researched evidence.

I'm qualified to a Masters level in biology, including a load of microbiology, so I'm familiar with bacteria and how they work and am so far impressed with the bottled bacteria.
You could cycle a tank from scratch, using naturally occuring bacteria...although this would simply take far longer.
Some add small amounts of fish food, to decompose and provide that bacteria with nutrients, thus speeding up the process.
Others add ammonia to the water, again, to provide any bacteria present with nutrients.
Others still add bacteria either from friends tanks, from outside water butts and/or a host of other watery sources.