Infinite backpack glitch:
First, go to Mel Senshir and save your game. Then, kill the Dokkalfar merchant to the left of where you spawn. Pay the fine or go to jail, then go to one of your houses and sleep for 4 days. Now return to Mel Senshir and the Dokkalfar merchant you killed will have respawned with fresh inventory. Purchase a new backpack and repeat for an unlimited supply of backpacks.
Train more than 3 pets:
When you get Pet Training, you normally can't train more than 3 pets. When asked to choose a pet to discard, select "Raise Pets" option [center option on left side]. After it you will be able to select option to train another pet. You can train all possible pets this way.
Easy combat training hint:
Place traps in the Combat Training Arena before you start training. They will remain there when training begins, damaging and slowing your enemies early on.
A Life of Crime - Got caught committing a crime 25 times.
A Wink and a Smile - You have succeeded at 50 Persuasion attempts.
And Then There Were None - Killed 500 enemies with abilities.
Big Spender - Spent 200,000 gold.
Blades of Glory - Acquired 10 Unique weapons (Special Delivery weapons excluded).
Bookworm - Read 50 books.
Breaking and Entering - Picked 50 locks.
Bull in a China Shop - Smashed 1,000 objects.
Cartographer - Discovered 100 locations.
Cleaning Up the Streets - Killed 50 bandits.
Crime Doesn't Pay - Spent over 10,000 gold in crime bribes.
Diamond in the Rough - Crafted a Pristine Shard.
Elixir of Fate - Made a potion with the Essence of Fate.
Five Finger Discount - Stole and fenced an item.
Foiled Again! - Parried 100 times.
Good as New - Repaired a piece of equipment.
Green Thumb - Harvested 10 of each type of reagent.
It Didn't Explode! - Made a stable potion by experimenting.
It is Your Destiny - Unlocked a top tier destiny.
Jack of All Trades - Unlocked a Jack of All Trades destiny.
Jailbreak - You broke out of jail.
Loremaster - Found all Lorestones.
Master of the Forge - Crafted an item that uses all 5 forge component slots.
Niskaru Slayer - Killed 25 Niskaru.
No Destiny, All Determination - You have met High King Titarion, and have been confronted with the true scope of your powers.
Open Sesame - Dispelled 50 wards.
Out of Your League - Killed an enemy 4 levels higher than you.
Reborn - You were reborn from the Well of Souls, and have escaped Allestar Tower.
Reckoning Rampage - Killed 5 enemies with a single Fateshift.
Riposte! - Landed 25 special attacks out of Parry.
Romancing the Gem - Crafted an Epic Gem.
Shock and Awe - Killed 100 enemies with abilities.
Shop Class - Crafted a piece of equipment with Blacksmithing.
Some of This, Some of That - Unlocked a two-class hybrid destiny.
Streaker - You spoke to someone while not wearing clothes.
The Great Detective - Detected 25 hidden things.
They Never Saw it Coming - Backstabbed 20 enemies.
Trapper - Killed 25 enemies with traps.
Where's My Wallet? - Pickpocketed 20 times.
Would You Like Fries with that? - Landed 100 complete attack chains.
Destiny Defiant - You have defeated Tirnoch, and defied destiny.
House of Ballads - Completed the House of Ballads storyline quests.
House of Sorrows - Completed the House of Sorrows storyline quests.
Juggler - Landed 5 consecutive hits on a launched enemy.
Scholia Arcana - Completed the Scholia Arcana storyline quests.
Travelers - Completed the Travelers storyline quests.
Turning the Tide - A ruse has baited Octienne into betraying the necromantic nature of his experiments.
Warsworn - Completed the Warsworn storyline quests.
Destiny Dominated - You have won the game on Hard difficulty.
Hero of Mel Senshir - You have defeated the great Balor.
Perfectionist - Earn all Bronze, Silver, and Gold trophies.
"The Teeth Of Naros" trophies:
Murder Most Fowl - Killed 50 Pteryx.
Give Her a Hand - Found Aubrey Gilcrest's severed hand.
Manic Pixie Dream Elf - Wooed Rast Brattigan.
The Harder They Fall - You've bested Kahrunk without killing his attendants.
Mistaken Identity - You've found a strange Almain who has been hiding in the sewers of Idylla.
Beam Me Up - Used the Henge to enter Idylla.
I Regret Nothing - Fell to your death from the Idylla Concourse.
We Built this City - You helped the Kollossae in the Teeth of Naros break free from their fate.