Okay, so here is the cost breakdown for the save the dates. Prices are before tax, obvs!
A2 White Envelopes (Staples) - $15.60
Wrapping Paper (to line envelopes) (Dollarama) - $1.00
4 x 5 White Cardstock Cards - Free!
Alphabet Stamps (Dollarama) - $1.00
Polkadot Stamp (Michaels) - $1.50
Black Ink Pad (Michaels) - $1.75
Yellow Ink Pad (Michaels) - $1.50
12 x 12 Yellow/Black Print Paper (Michaels) - $1.69
1/8" Round Hole Punch (Michaels) - $4.75
100 Yds Black and White Twine (eBay) - $3.98 (Used less than half)
100 Custom Magnets (Vistaprint) - $8.99
Miscellaneous (pens, double sided tape, paper cutter) - $5.00
Total for 60 Save the Dates: $46.76
Stamps for 40 Cards - $21.00 (The rest were hand-delivered at Christmas)
Grand Total - $67.76
Price per Save the Date (without stamp) - $0.62
Price per Save the Date (with stamp) - $1.13
So all in all, not too expensive. I think if you don't include the cost of stamps, $0.62 for a save the date isn't too bad. I think it definitely was a huge learning process and it has definitely shown me more of what I want to do for the invites (colour!). Also, we have leftovers of almost everything, because we had to order 100 magnets and the envelopes only came in packs of 50. Also, a lot of the supplies we used can be used in future projects, so those were necessary costs that won't have to be repurchased for the invites.
So, I'm happy with how they turned out and I'm glad to see the costs didn't get out of control. Especially since everything was bought in bits and pieces, and I didn't look at costs until now. Phew!
Did your Save the Dates turn out how you anticipated?