Burning isn't really a problem, if you are filling and using them properly, most brands are good.
You could try smokeless image, they are a little bit cheaper than the bloogs. Make sure to find a coupon though, you can get 10-15% off.
You might as well just
shop around till you find cheaper 808 cartomizers though. Boges or kangers would be fine. You should be able to find them in the $7 dollar range pretty easily. You can get them for about 4.50 a pack if you order from health cabin in China, but with the cheap shipping option i've heard you can expect a month wait for shipments. If you don't know, you probably will want to stick with standard resistance cartos. LR is too hard on little
batteries.
Edit:
I just realized you might have meant you wanted clearomizers instead of filler cartos. But, both sites i mentioned sell 808 clearos. SI has CE3 clearos for a very good price.