I scoured the posts that I have either started or have been a part of and titled and linked them below. They contain answers to some of the most common and most used components of Quest (at least the ones I have used often). I did not include posts that I felt were super specific (I've had a lot of those answered for me, so thanks!). Hopefully, this could become a thread that people with questions can reference first for help. It will be incredibly helpful if game creators that have found great help from the Quest Forum also post titles and links. If it is found useful, I will update this list as great info continues to pour in! Hopefully I didn't miss anyone in the "courtesies". I thank you ALL for your help.

Text Processor Common Commands (documentation)
http://docs.textadventures.co.uk/quest/text_processor.html

[b:2s29crlg][u:2s29crlg]Checking for two Conditions (Flags/Booleans) with help from 'AND' (courtesy of HK)[/b:2s29crlg][/u:2s29crlg]:

viewtopic.php?f=10&t=5943&p=41146#p41146

[b:2s29crlg][u:2s29crlg]Selecting a simple random response & the Once script (courtesy of lightwriter and neonayon)[/b:2s29crlg][/u:2s29crlg]:

viewtopic.php?f=10&t=5869&p=40572#p40572

[b:2s29crlg][u:2s29crlg]Using/Setting Attributes and Variables (incredibly useful!) (courtesy of Jay)[/b:2s29crlg][/u:2s29crlg]:

viewtopic.php?f=10&p=40542#p40542

[b:2s29crlg][u:2s29crlg]Complex Commands (courtesy of ThePixie, Pertex, and Alex)[/b:2s29crlg][/u:2s29crlg]: (read this before wasting tons of time with regular command patterns!!)

viewtopic.php?f=18&t=5862

and viewtopic.php?f=10&t=5892 (problem solved!)

[b:2s29crlg][u:2s29crlg]Adding a Progress Bar (courtesy of Jay): [/b:2s29crlg][/u:2s29crlg]

viewtopic.php?f=18&t=5770&p=40015#p40015

[b:2s29crlg][u:2s29crlg]Merging ‘x container’ and ‘search container’ results (courtesy of jdpjdpjdp): [/b:2s29crlg][/u:2s29crlg]

viewtopic.php?f=10&t=5759&p=39960#p39960

[b:2s29crlg][u:2s29crlg]If carrying (object #1) AND (object #2) (courtesy of OurJud, ThePixie): [/b:2s29crlg][/u:2s29crlg]

viewtopic.php?f=10&t=5757

[b:2s29crlg][u:2s29crlg]How to use the ‘OR’ function in an expression (courtesy of ThePixie, HK):[/b:2s29crlg][/u:2s29crlg]

viewtopic.php?f=10&t=5747&p=39755#p39755

[b:2s29crlg][u:2s29crlg]Making Talkative Characters and Unlocking Exits (courtesy of XanMag, Pertex, HK) – this link is kind of all over the place but there are helpful bits in here:[/b:2s29crlg][/u:2s29crlg]

viewtopic.php?f=10&t=5707&start=15

[b:2s29crlg][u:2s29crlg]Moving all/multiple items at once (courtesy of ThePixie, HK, XanMag):[/b:2s29crlg][/u:2s29crlg]

viewtopic.php?f=10&t=5699&p=39261#p39261

[u:2s29crlg][b:2s29crlg]Eating with Hide Object (courtesy of Marzipan, Neonayon, HK, ThePixie):[/b:2s29crlg][/u:2s29crlg]

viewtopic.php?f=10&t=5686

[u:2s29crlg][b:2s29crlg]Adding NPC Conversations That Appear After Events Happen (ThePixie, XanMag))[/b:2s29crlg][/u:2s29crlg]:

viewtopic.php?f=10&t=5642&p=38824#p38824

[u:2s29crlg][b:2s29crlg]Making Objects Appear in Room (courtesy of Marzipan, Pertex, Father Thyme, XanMag)[/u:2s29crlg][/b:2s29crlg]:

viewtopic.php?f=10&t=5425&p=37701#p37701

[b:2s29crlg][u:2s29crlg]Use of Multiple Objects to Complete a Task!! – this was HUGE for me! (courtesy of TM123, HK, XanMag):[/b:2s29crlg][/u:2s29crlg]

viewtopic.php?f=10&t=5411&p=37544#p37544

and viewtopic.php?f=10&t=5404&p=37493#p37493
and viewtopic.php?f=10&t=5175&p=35795#p35795

[b:2s29crlg][u:2s29crlg]Sound Files, Playing Multiple Sounds (courtesy of Jay, Silver, Pertex):[/b:2s29crlg][/u:2s29crlg]

viewtopic.php?f=10&t=5360

[b:2s29crlg][u:2s29crlg]Switch Scripts, Cases, and the AWESOME LCase(result) (courtesy of TinFoilMkIV, XanMag, HK, Adammadam)!![/b:2s29crlg][/u:2s29crlg]

viewtopic.php?f=10&t=5310&p=36776#p36776

[u:2s29crlg][b:2s29crlg]Turnscripts (UGH!!)[/b:2s29crlg][/u:2s29crlg] (courtesy of Jay): This is a giant mess, but it was really helpful!

viewtopic.php?f=10&t=5141

[b:2s29crlg][u:2s29crlg]Game Appearance - layout, command box, etc (courtesy of OurJud by way of Jay and others):[/b:2s29crlg][/u:2s29crlg]

viewtopic.php?f=10&t=5846&p=40434#p40434

[b:2s29crlg][u:2s29crlg]Verbs - Conflicting/Repetitive (courtesy of ThePixie):[/b:2s29crlg][/u:2s29crlg]

viewtopic.php?f=10&t=5897&p=40780#p40780

Good idea, Xan - I've had a few of these over my time here, many of them in the last two months. I'll have a dig and see what I can find.

Hiding the flashing parser/cursor when using the timer (wait X seconds) script (Courtesy of Jay):
viewtopic.php?f=10&t=5820&p=40307#p40307

Recalling custom CSS after ClearScreen function (Courtesy of Jay and Pertex):
viewtopic.php?f=10&t=5816&p=40288#p40288

Image fade-in effect (Courtesy of Alex and Jay):
viewtopic.php?f=10&t=5796&p=40225#p40225