Not that chess. com isn't busy enough - but they ask for suggestions. Daily puzzle is popular - what about following through a game (or parts)like chessmaster's match the masters; Googled chesslife thinking of subscribing and got sidetracked by a pick your move and get points game. Flipping through a Jeremy Silman book he mentions tactical vision and says this is a great way of learning(follow a great game and choosing the moves). It could be the sunday paper of daily puzzles, and at the end get a rating for your move picks. Kicker if it was a members game were working through.