I use ccleaner, malwarebytes, and auslogics disc and registry defrag programs when my client's pcs need a tune up. I tried glary utilties and did not care for it, was not able to do the same stuff as easily.
On the note of antivius the two best rated are Bitdenfender and Kaspersky
FYI B.D. Total Security is just Internet Security with some useless utilities and a heftier price tag.
Cant find the article but Toms reviewed the 2014 Internet Security suites and put BitDefender number 1 and Kaspersky number 2.
I had been using Kaspersky for years but have seen some security issues sneak through on client's pcs and had a hell of a time getting it to not block port 445 (samba shares for non windows pcs) so next year I will be giving bit defender a try.