Originally Posted by
Shanye2233
So here what I have planned out . Yes it's expensive but I was going anyway just changed a few things.
Arriving at airport renting car to take me to hotel then dropping off car so dont have to pay for overnight parking ($50)
HIT 1 ? Renting and returning the same day?
Checking into Hilton day 1 paying $130 per night
HIT 2
Checking into another Hilton for 3 nights paying $500
HIT 3
Checking into Marriott resort paying $150
HIT 4
renting car for 1 day rental using promo code freeday rental with Hertz paying excess $12
HIT 5
checking into hyatt resort $160
HIT 6
Returning car and renting another car again using promo code free day with hertz paying $27
HIT 7
Checking into hilton again for 3 days $500
HIT 8
Returning car and renting car avis $55
HIT 9
checking into marriott $240 
HIT 10
returning car and renting another one day $55 avid
HIT 11
checking finally into hilton $130
HIT 12
Catching air bus back to airport.
Now I'm a Marriott platinum I think. Have to earn spend $500US to earn enough for a transfer hit
HIT 13
Now I have enough points with the double points promo to transfer 10k with HH
HIT 14
So I buy a few cookies take an airport shuttle bus hopefully the e-miles if I can get enough I'm currently (340).
The toolbar
What else can I do does that look all ok?
You might want to check your math.
You have 7 hotel stay hits listed, but the max allowed for the GS promo is 6.
You say you need to spend $500 at Marriotts for HIT 13, but you're only spending $390.
Also, some rental car agencies (e.g. National) don't award credits for consecutive rentals - return and pickup on same day. If you're doing this, you might want to confirm with Avis and Hertz that you'll receive airline mileage credit for each rental.
This looks awfully expensive. I hope you were planning on doing this even without Grand Slam. Otherwise you'd be better of using part of your budget to buy 100,000 miles, and saving the rest.