Figured with the influx of new baiters visiting I would toss up some of my "Go To" items for the bait barrel..
#1 Liquid Smoke (this stuff is great for quick scent and seems to work well up here) I buy several gallons for the season on Amazon (it usually fly's off the shelf in town but sometimes can be found at 3 bears)
#2 Popcorn (lots, if you have access to a few poppers just bungee them around a 55gal trash can and pop away) This is a great filler and its much easier than dragging several 50lb bags of dog food. I coat mine with strawberry Kool-aid just after its popped.
#3 Scent Attractant (several companies to choose from I usually find myself reaching for the stuff made by a Wasilla based company) Anise, Bacon, Maple or Honey are great combos as well as blueberry. A quick google search will show up several companies that make it.
#4 The winter's supply of bacon grease that we save (as well as other scraps) I usually toss them in a 2 - 5 gal bucket and hang around 12-15ft up with small holes drilled in the bottom of the bucket
#5 Dog Food (self explanatory)
#6 Pastries / Bread (also great fillers but remember not to just use these as other stations in your area may offer the bears a better variety of tasty treats).
#7 homemade lollipop in a metal 5 gal bucket or even a paint can (google how to do this its quite simple and works well). we usually toss a heavy chain in the can with about 3-4ft of excess chain outside to allow easier access to securing it to a tree etc.
#8 Peanut butter (another excellent option to keep bears on station longer) I have seen several tricks ranging from filling a used tire tied on a tree to just using the plastic containers stuck over a cut sapling..
#9 Molasses (great topper, just beware that if you dump it all over the tree's base 90% of the time the bears will tare it up so bad that the tree may die).
These are a few of the go-to items for me (I am leaving out a few of my more potent go-to items as we all have our secrets).
Best of luck everyone and hope to see some great reports this year!