Heres a trick for 6/49 lotto's but will work with any lotto with the correct sums.
In your lotto, generate all combinations, and then select to Leave 3 Sums which are at the very top of the bell curve. The center one, and each sum on each side for a total of 3 Sums.
In a 6/49, the center sum is 150, so we Leave 150, 149 and 151. That should leave you almost 500,000 combinations. You then select best ticket and keep only 1 best ticket and since this is going to take a long time, I suggest you set the priority of Expert Lotto to Low in Task Manager so you can do other things on your PC while it crunches.
In my 6/49, there are 8 draws a month and I win minimum of once every month a 3/6 or more with just 1 ticket. Thus far I done this for 3 months and won 4 times exactly... By my calculations, you could win only twice in 3 months but I figure the average would be around once a month. Hope I'm not getting ahead of myself but seems to hold so far.
Ok, this trick does not make you a profit, however, it brings back about 50 cents on the dollar which is double what lottery commissions give out normally, and just 1 ticket per draw! Its cheap and who knows, you may still hit the big one while doing this!
Good Luck...