Two year olds like to open shiny interesting containers. This age child is particularly at risk for poisoning, choking and burns. Keep all poisonous containers of any kind out of their reach. Lock all medicine in a cabinet up high. Any cupboard which has cleaning supplies in it should have a childproof latch, regardless of whether small children live in the house or not.
Household chemicals are dangerous if ingested in large amounts.
Medications should be kept out of reach and out of sight. Outlet covers, most stores carry some brand of covers to go over electrical outlets, to prevent a curious toddler sticking an object in one. Cord guard, these are used to cover your cords that are in the outlets to prevent a small child from pulling the cord out of the socket and then trying to plug it back in. Toddlers are at just the right height to hit their head on the corners of counters and sharp tables. A child running into the front room may trip and fall and hit their head on the corner of the coffee table.