On page 3 of this KAL...post #26
...I talk about blocking. And, again on post #30 (with photos on blocking tips).
And again on page 4 (posts#37 & #39) has info about the blocking board, blocking wires...where to get it, how to do it, etc. And if memory serves me...I think I talk about how you can make a less expensive blocking board from those cardboard accordian-fold-up seamtresses cutting boards and clear tablecloth vinyl from the fabric store.
We shared a lot of chat on pages 2-5 about blocking. Just check through those pages. But for sure, pages 3 & 4 have blocking stuff.
You will be AMAZED at how much better your stitches look when you block the Tahki Donegal Tweed!!! I made the leaf green CPH for my DD first...before my blue one for this KAL...and hers was the Tahki Donegal Tweed! It was not easy to knit with, I'll admit, but it sure improved after blocking!!!
Please do consider purchasing the wash and rinse I suggested in my post. The UNICORN FIBER WASH people are just great, and you'll have your wash and rinse product in a flash. You can buy little bottles. I bought the 16oz bottles, but there is even a smaller size. It goes a long ways.
I am proud of you for approaching this CPH with a professional mind! Your CPH can be a learning curve for you!
Once you see the improvement in your knitted garments with blocking first, seaming next...and using the mattress stitch for seams...you'll never look back!
What color of Tahki Donegal Tweed did you buy?