Tips/Rules to enjoy fantasy football without obsessing or taking away from your family:
1. Only enter 1 league
Only being in 1 league means there are only several NFL games each week that really matter.
2. No fantasy football until kids are in bed
Buy or rent a couple PVRs and record 4 different games on Sunday. Then watch them Sunday night once the kids are in bed - you can use the "skip 30 seconds" button to skip huddles, commercials and all and can watch a full game in about 45 minutes. Or, just pick 1 game each Sunday to sit back, relaz and enjoy for a few hours.
3. Do NOT check stats on Sundays
Checking stats throughout the day Sunday only gets you more obssessed and on edge. Waiting until Monday morning gives you something to look forward to for the work week! If you follow rule #2 above, then checking stats isn't an option anyway as you would spoil the games you PVRed.
4. Try to avoid knowing which players your opponent is starting
Yes, this is possible. Don't check rosters, match-ups etc througout the week. Just focus on your own team and no one elses - you can't affect other people's teams anyway. If you don't really know who your opponent has come gameday, then you don't get stressed out when his players are doing well. Knowing its gameover at half time of the morning game because my opponents QB tossed 4 and his RBs had over 200 yards and 3 TDs combined used to wreck the rest of my day.
5. Make a strict guideline to follow for difficult lineup decisions
This takes away the anguish later that you made the wrong choice as you were simply following your own rule you established and follow religiously.
Ex - if I can't decide, then I will always follow FBG rankings. Or, if its a toss up, then I will always pick the guy who is playing in a national audience game.
And yes, this is possible too.