Daily Chess: I almost never play daily chess games or enter matches with time controls faster than 7 days per move. I make exceptions in cases where I have a good chance of playing really strong opposition and/or when I have too few games going.
Friends: I will accept nearly any friend request, but in practice, it seems not to mean much, as I have rarely if ever been messaged or challenged by any of the many people I've friended, and I can't remember which people I've friended to challenge again later, which are friends because of a mutual interest, which I've helped, which have helped me in some way, and so on. If you are in my friends list, feel free to message me or challenge me anytime, regardless of rating.
Clubs: I make a deliberate effort to severely limit my membership - and even moreso my involvement - in Chess.com clubs, so I almost never accept club invitations, and I tend to leave clubs I have not participated in for some time.