SAVE OVER $100: As of April 28, the Shark Navigator robot vacuum has been discounted to $189.99 at Amazon. This is $110 off its list price of $299.99. $189.99 at Amazon $299.99 Save $110 Now that spring is here, it means more time outside . That also means more chance for dirt to be tracked in your house. If you want a little extra cleaning assistance over these warmer months, a robot vacuum can help. Amazon even has some models discounted right now, including the Shark Navigator robot vacuum . If you're just looking for a vacuuming model, rather than an all-in-one option that can also mop, the Shark Navigator robot vacuum is down to $189.99 at Amazon. This is a $110 discount off its original list price of $299.99. Just keep in mind it's currently marked as a limited time deal, meaning it may not be available for long at this price. Mashable Trend Report Mashable Deals By signing up, you agree to receive recurring automated SMS marketing messages from Mashable Deals at the number provided.…