Keep car seats cool with reflective emergency blankets
Hot car seats. Ugh. Liz has a fantastic tip for keeping them relatively cool during hot summer days:
A friend of ours has a great hack to keep their kids' car seats cooler in hot Las Vegas -- they cover up the seats with an inexpensive reflective emergency blanket (the silver ones). The seats stay noticeably cooler, even when it's 110 degrees in the shade!