I've received two offer last month but cannot take it as it will need me to work on weekends. Now looking for 5 days full time working, thinking of joining non executives line as I need money to fund my master which the class will be held on weekend. Thinking of applying Giant, Tesco, Parkson, but didn't know either they will let me take the night shift on weekend as replacement for daylight shift or not ... 

So, since I'm free right now while searching for a job. Having another certifications could be consider as personal achievements. The question is which certs will give me more value.