I've taken 5 CLEPs in the past week:

Mon - US History 1 - 76
Tue - US History 2 - 74
Wed - Information Systems - 64
Mon - Western Civ 1 & 2 - 76 & 72

Instant Cert is a wonderful resource especially when backed up with REA study Guides. I only started studying a few days before my last exam. I read the REA review to give back ground and practice then used Instant Cert to reinforce.

CLEP saves time and money and it's nearly as hard as people make it out to be. Just don't slack and give each clep exam at least 2 to 3 days of your life. Turn off your phone, stay off messenger and focus.

Good luck!!