I understand. We have all been in your shoes

Here are the ones I can thing of that you may see in the threads:
HOD - Heart of Dakota
LHTH - Little Hands to Heaven (3-5 year old program)
LHFHG - Little Hearts for His Glory (5-7 year old program)
BLHFHG - Beyond Little Hearts for His Glory (6-8 year old program)
BHFHG - Bigger Hearts for His Glory (7-9 year old program + extensions available)
PHFHG - Preparing Hearts for His Glory (8-10 year old program + extensions available)
CTC - Creation to Christ (9-11 year old program + extensions available)
R2R - Resurrection to Reformation (10-12 year old program + extensions available)
RevtoRev - Revival to Revolution (11-13 year old program + extensions available)
MTMM - Mission to Modern Marvels (12-14 year old program + extensions available)
WG - World Geography Guide (13-15 year old program- 1st high school guide)
WH - World History Guide (14-16 year old program - 2nd high school guide)
DITHOR - Drawn into the Heart of Reading - used in conjunction with BHFHG through MTMM
R&S - Rod and Staff is the grammar program that HOD sells.
SM - Singapore Math - this is the elementary math series that HOD sells for math
OSS - One Small Square - these are science books sold in some of the younger HOD guides, 3 sold as part of BHFHG, 2 in PHFHG, and a couple in the lower level book packs.
Other things you may read that HOD doesn't sell:
MFW - My Father's World - this is another curriculum company. Many people here have used both HOD and MFW and sometimes people will talk about a comparison between the two.
AAS or AAR - this is all about spelling or all about reading. This is not sold by HOD but some people will talk about because they have used it
CLE - Christian Light Education - again this is not a product sold by HOD but some people use it and list it in their signature
IYW - Igniting your Writing - this used to be sold by HOD but I don't think it is anymore