Bumps and bruises will happen, especially the 2-3 months after they first take their steps. However, you DO have to watch him all the time!!
I think about where I spend the most time - our kitchen-family room-laudry room area. My baby has freedom in there as long as I don't have boiling pots on the stove. It is childproofed, and I can see her completely. If there are hot pots, I put her in the highchair. She comes in the bathroom with me, and I tell her to sit and give her a toy. At 12 months I would plop her in the crib with safe and non-climb-able toys. I shower during naps or before my husband leaves for work. IF I have to shower while she is up, she goes in the exersauser or crib, even if she screams for the 2.5 minutes I take in the shower in those situations. Sometimes, they have to cry, if it measn they are safe.
I want to say it gets easier, but I am not sure that is true. They get better about not falling, but they discover new tricks - climbing, opening doors, etc. You jus thave to stay one step ahead. ut unfortunately you DO have to be ever-present, he has to be with you all the time. It is frustrating to have stop doing dishes 10 times because the baby diasappears around a corner or starts climbing on the ocuch, but that is just how it is.
Good luck! I have a 5 year old and a toddler. Around 2 1/2 it is a little easier - they can watch Seseme Street - It is amazing how much you can do in an hour of Seseme Street!!!