I'm looking for the exact same thing, a budget tarp for glassing in the fall and keeping in the pack for when hiking with family. We now have 2 kids in kid carriers so my carrying capacity has eliminated the blue poly tarp we used with just one kid (I also used to carry a indoor/outdoor rug so that is getting replaced too).
I really like the idea of the reinforced cup in the center of the Seek Outdoors DST, and I am trying to decide if it is worth the extra $40 over the Bearpaw. I like the Kifaru Sheep tarp, but I think it is just a bit too small for the wife and I and 2 small kids (the dogs will probably want to get under there as well)
So here are some additional questions for you guys:
1) is the center cup on the DST worth it.
2) Does anyone have a preference in shape that they find more convenient/easier to set up? Square 9x9 or rectangle 8x10 being the top 2 choices right now.
Thanks for all of the suggestions thus far - before I found this thread I was pretty much lost.