Dead (sorry about the pun) easy. I do several things, depending on the bait.
If its something like a sprat or small roach etc..I lay a sheet of clingfilm on a tray and then lay the baits out straight on top. Then I cover the baits and freeze them over night. Next day I take the fish and bag them, 5 to a bag and seal the bags. This way I have straight, aerodynamic baits, free of freezer burn, bagged ready for use.
For bigger baits, I wrap individually in clingfilm and again, freeze on the tray first to get them straight. Once froozen, again, they are bagged, usually 3 to a bag.
To glaze a bait, either spray them with a coating of water from a plant atomiser (u can add flavours and dyes at this stage) or get a bucket of iced water and dip each fish, then lay on a cold tray and slip into the freezer. Once more, bag when frozen.
Hope this helps.