My dad has said that he would like to put aside some money for my sons (one 29 months old, one due in September). I'm not sure if he wants to put away a lump sum or regular savings. We already have a CTF for son but my dad says he wants to put away more than the annual limits for CTF so wants something separate. Obviously I'm happy for him to do this but am a but clueless as to what's the best vehicle for this money? I'm happy to keep out of it as I believe it's between my dad & his grandchildren but he wants us to be involved with any decisions. Any ideas?