Waitrose's own A-Z Multivitamin and mineral supplement.
Any own-brand (Boots, Superdrug, any supermarket) or online supplier is likely to be way cheaper than the big brands with similar contents.
I take folic acid (kept up with it after my son was born in 2003), zinc and have just started us all on high strength vit D (after reading stuff on here). Hubby takes Coenzyme Q10 and omega 3, son had been taking omega 3 with multi vitamins since he was about 3 (he is 17 now).
I take D3, C, fish oil, and magnesium. I'm going to add vitamin K2, which iirc reading recently, prevents a build up of calcium in the arteries that can be caused by D3.