The ASPCA's Animal Poison Control lists these products as the most common ones that can poison pets. These are not the only ones, just the most common ones.
Household Products
Bleach
Carpet fresheners
Carpet Shampoo
Essential oils
Fabric softener sheets
Grout
Toilet cleaning tablets
Vinegar and water
Medications and Cosmetics
Adderall
Petroleum jelly
Aspirin, baby aspirin
Bar soap and face wash
Breath fresheners (Xylitol)
Cigarettes and nicotine patches
Ibuprofen and naproxen
Kaopectate and Pepto Bismol
Mosquito repellent with DEET
Pseudoephedrine (and other nasal decongestants)
Sorbitol
Topical creams/ointments (read labels for ingredients)
Visit the ASPCA Poison Control Center for more information regarding the listed items.