Daily Banis
Japji Sahib, Jaap Sahib, Tav Prasaad Savaayeeyai, Rehras Sahib and Sohila are the five daily Banis!
Sukhmani Sahib, Asa Di Vaar, Anand Sahib, Chaupai Sahib, Dukh bhanji Sahib are among the other ones people do regularly. There is no limit to how much one should read