Itching for more physical storage space? A fast and reliable portable SSD like the Crucial X6 should do the trick just fine. And now’s a great time to jump on one because the 1TB version of the Crucial X6 portable SSD is on sale for $68 at Amazon, which is a good 32 percent off its already budget-friendly $100 MSRP. That’s the best price we’ve seen in months for this thing. The Crucial X6 is a solid pick among portable SSDs, and we even dubbed it the “best budget 10Gbps external SSD” in our roundup of best external SSDs. In fact, when we reviewed the Crucial X6, we gave it a near-perfect 4.5-s…