Here's something I found at:
http://www2.huntinfo.com/ubb/Forum4/HTML/003058.html
Here are a couple ideas that have worked for me. I ran around 30 baits this spring and they are alot of work to say the least. Main concern when most people start a bait is cost. Go see your local restaurants and see what you can do about getting a pile of their old five gallon pickel/mayo/etc buckets. Most won't save table scraps for you because of health regulations. But they may dump their grease once or twice a week and you can get that if you come pick it up right away.
Take the buckets to the local butcher and ask him if he will start filling them for you if you come pick them up every day or every other day. Kentucky Fried Chicken joints have great grease so if someone is close and can get buckets it works great. If you can't get buckets go buy a few of the rubbermaid trash cans and you can have the butcher put the scraps in them but they can be hard to move. A 5 gallon bucket will weigh about 30 lbs so the 35's are 7 times that and are tough to move. If you are short on 5's it is also handy to dump your grease into a 55 gallon barrel, but you need some place sunny or warm to put it as the stuff will set up quick.
Grain is reasonable, cheaper than dog food and the bears will like it as much if ya dump a little grease or mollases on it, also the calf ration that has cracked corn and mollases already added works great. Cheap maple syrup is a hit too. Take your post hole digger out and dig a post hole about 30-40 inches deep and fill it with a mixture of maple syrup and popped popcorn or rolled oats. What this will do is keep a bear occupied if they come in and your barrel or bait is cleaned out.
Popcorn is a real cheap "filler" for your baits. You can go to Cosco and buy 5 lb bags for about $5.00 and they will pop out to fill about a 35 gallon trask can. While you are popping he popcorn mist it with vanill and sprinkle powdered jello on it while it is damp so it will stick. Bears will kill themselves (literally) to get it. I lay a trail of this popcorn to right in front of the tree stand for my hunters and we had several bears killed at point blank range because they get occupoied with picking up each piece of candy (jello) coated popcorn. Get in contact with your largest bakery and ask if you can come pick up two and three day old stuff. You will have some competition for this if there is bear hunters around or hog farmers.
What we do is this, Put a layer of about 3 inches thick of meat scraps in the bottom of the bucket, then dump a little grease mix about six-eight inches thick over the meat scraps, put a six inch or so layer of donuts/bread and dump some mollases or syrup and grain mix on this. Two of these buckets a day will take care of most baits. The ticket here is the meat on the bottom will be heavier than the crap on top of it and will push the grease mix and mollases out and it will all come out without spending 10 minutes trying to dig it out with a stick. If the bait runs out during the night and a bear comes in he will dig to China trying to get at the last bit of syrup mix in your hole so it will keep him busy and coming back.
When we start baits we will use Kncko-Out Bear Lure from James Valley scents. This stuff is RIPE! It works just like the rotten mink carcasses and rotten beaver carcasses with out all the lovely handling. It is in a paste and you glob it on a rag and hang it in a tree. A jar of it is around 10 bucks and will work to open about 8 baits. They also make some stuff called Sweet Tooth and works good to "burn" to put sweet smell and smoke in the air. What works good is take a coffee can and punch some vent holes along the bottom edge. Put a good layer of brickettes in the bottom and get them burning. Put some of this Sweet Tooth crap in a small tuna can and drop it on top of the hot coals and let it perk. It will smoke to beat heck and carry around real well. Pour a little on the coals too. Last plug for James Valley (no I don't have stock in the company!LOL) is their Sow in heat piss. Good stuff IF you have an active bait already, not real effective just squirting the stuff all over and waiting for a bear to come in.
Last little tid bit and I'll shut the hell up. A spray bottle with a teaspoon of anise oil, one cup of vanilla and about 5 cups of water and mist is around the area will leave a nice sweet smell and really helps, can't hurt to try los of stuff. Also we dump about 5 gallons of grease in front of the bait so the bears walk through it. Gets their feet full of grease and when they walk around other bears will cut their track and hopefully follow it in.
Good luck, baiting is a pain in the A$$ but alot of fun.