Maxing bluff

[Pesimismrocks]

Me and my friends are starting a campaign with the idea of while not making characters like pun pun or the hulking hurler, we would attempt to become heavily OP. For example the bear warrior will average roughly 200 damage. I have been selected as the party face and really need help optimising bluff. Here is my build so far.

Chaotic Neutral Beguiler
Warlick 5/ Mundbender 10
Str: 6
Con:14
Dex:20 (+4)
Int :16
Wis:10
Cha:22 (+6)

Feats:
Force of personality
Mantle of Freedom
Quickened Eldritch Blast
Mindsight
Agile Athlete
Improved Initiative

Invocations:
Beguiling Influence, Baleful Utterance, Eldritch Spear, Charm, The dead walk,

So far my bluff is 18 (ranks)+9 (modifier)+6 (beguiling influence) +6 (mindbender)+30 (ring of glibness)+20 (cloak of bluff) for a total of 89

Any thoughts in feats to swap or items to get (considering I have a +4, a +6 and a +2 tome). Agile athletes not much use at the moment so I'd like to swap that out. I'd prefer to keep warlock and mindbender although if there's a huge bonus I'd swap. Thanks in advance.

[Asteron]

A one level dip in Marshall can net you double Charisma modifiers on all Charisma based skills...

[Kazyan]

For those times when it's important, keep a scroll of Glibness on you. You should be able to UMD it, as you are a Warlock.

[Nettlekid]

Custom item of Glibness? 63,000 gold if you want it continuous, or the far more reasonable 37,800 if you make it unlimited uses per day, and have to reactivate it every 70 minutes. +30 to your bluff check right there.
Tack on a custom item of Bluff for a competence bonus of 10 or 20 for 10,000 or 40,000 (15 is a good for 22,500) and that more than doubles your current score.

[Krobar]

Custom item of Glibness? 63,000 gold if you want it continuous, or the far more reasonable 37,800 if you make it unlimited uses per day, and have to reactivate it every 70 minutes. +30 to your bluff check right there.
Tack on a custom item of Bluff for a competence bonus of 10 or 20 for 10,000 or 40,000 (15 is a good for 22,500) and that more than doubles your current score.

This is the first thing I would look to do. A Ring of Glibness would be great for this character.

[Pesimismrocks]

Thanks for the replies. I now have 89 in bluff with magic items. Any ideas on useful feats that help bluff in a more significant way than skill focus bluff?

[Nettlekid]

Item Familiar, from Unearthed Arcana. Among other things, it lets you spend skill points into the familiar instead of to your skills, and for every three points you spend you get a +1 bonus on a skill of your choice. Basically it ends up doubling the "ranks" you have in a skill (you don't get more ranks but the bonus is related to how many ranks you can have) in exchange for having many fewer skill points in skills. At 15th level that would get you another +18.