>>>>1 a day and less than a pack over the weekend
One a day is GOOD, but when you smoke more on the weekend you create these mini 'relapses'. The solution in my experience is to really regulate your tobacco use so you have a solid basis for reduction.
This may sound weird, but I would suggest smoking less on the weekend... and perhaps more during the week. If you're smoking slightly less than a pack on the weekend, say 8-9 cigs a day, try setting a goal of 7 cigs a day. This way you're moving forward in a small step towards reducing the max ammount you smoke on any particular day. And give yourself some leeway during the week. Knowing that you induldge on the weekend, there's anticipation being built throughout the week. If you allow every day to be the same, there's nothing special about the weekend in regards to tobacco. So if you smoke 7 cigs a day, every day, it becomes much easier to transition to 6 cigs a day, every day, and so on.
Something else that was helpful to me was switching brands for reduced tar/nicotine cigarettes. Most American cigarettes don't go below .5nic/5tar so if you're smoking an 'American ultra-light' you're not going to find much lighter in the stores. However, if you look around on the internet you can find cigarettes with .3nic/3tar and .1nic/1tar. When I lowered my usage to 5 cigs a day, instead of switching to 4 a day the next week, I switched down to 5 of the .3nic/3tar cigs. Then about a month later I started smoking 5 a day of the .1nic/1tar. After a couple weeks of that, moving to 4 a day was no problem (the difference between 5 cigs with .1nic, and 4 cigs with .1nic isn't very much).
Basically, a slow smooth reduction, seems to work better than 'roller coaster' usage where you're using more some days than others. That is what worked for me. I still have quite a few packs of those .3 and .1 cigarettes and would be glad to mail them to someone who would get some use from them. They've been sitting here at my house for the last two months and I have no desire to use them.