The consensus of the OU’s Poskim is that the following may be used on Pesach without certification:
1. Aluminum foil
2. Baby ointments
3. Aluminum foil baking pans
4. Bags (plastic)
5. Body wash
6. Bowl and tub cleaner
7. Candles
8. Cardboard
9. Carpet cleaner
10. Charcoal
11. Conditioner
12. Copper and metal cleaners
13. Cork
14. Cosmetics (except possibly lipsticks, see below)
15. Cupcake holders
16. Cups [paper (in the USA only), plastic or styrofoam]
17. Detergents
18. Dishwashing detergent
19. Drain opener
20. Fabric protectors
21. Furniture polish
22. Glass cleaner
23. Hair gels, sprays & mousse
24. Hair removers & treatments
25. Insecticides
26. Isopropyl Alcohol
27. Jewelry polish
28. Laundry detergents
29. Lotions
30. Napkins (paper)
31. Oven cleaner
32. Paper cups, plates and towels
33. Plastic containers
34. Pipe openers
35. Plastic bags, cups and plates
36. Plates [paper (in the USA only), plastic or styrofoam]
37. Scouring pads & powders
38. Shampoos
39. Shaving cream and gel
40. Shaving lotion
41. Silver polish
42. Skin cream
43. Soaps
44. Stick deodorant
45. Styrofoam cups or plates
46. Suntan lotion
47. Talcum powder (100% talc)
48. Toilet bowl cleaner
49. Towels (paper)
50. Water filters