I can honestly say that I've never really experienced any streaks at the physical
casino, as I wouldn't refer to two trips in a row as a, "Streak." I've actually only ever played on-line Bingo, and I plan to offer a post about that later tonight from a first-time player perspective.
The only real streak I've ever had was with physical instant
lottery tickets. If I win, I play until I lose, and as soon as I lose one one I am done for the day. In five consecutive days, I did the following:
1.) Won $23 on $5.00 in tickets.
2.) Won $18 on $4.00 in tickets.
3.) Won $48 on $7.00 in tickets.
4.) Won $119 on $13.00 in tickets.
5.) Won $31 on $4.00 in tickets.
Over the five days, I won $239 on $33 in tickets, all Crossword tickets, of varying denominations. I lost on a $2.00 Crossword ticket on the sixth day.
7.2 : 1 Return on Investment, not bad.
That's the only streak I have ever had as far as gambling is concerned. I've won more money than that total any number of times, but not in the form of a streak.