Sheena Vasani writes about tech news, reviews gadgets, and helps readers save money by highlighting deals and product recommendations for The Verge . If you want to give mom something that helps lighten the load, the SwitchBot Bot Rechargeable makes for a great, inexpensive gift. And now through May 10th, you can buy it for around $26.99 ($7 off) from Amazon and SwitchBot (with code FORHER20 ) as a part of its ongoing Mother’s Day sale , which drops the gadget to its best price to date. The original, battery-powered SwitchBot Bot is also on sale at Amazon for $22.99 ($7 off) in black or white , if you’re looking to spend less. SwitchBot’s tiny helper is easy to set up, and once attached to a button or rocker switch, it uses a small arm to press buttons on your behalf — no rewiring necessary. You can control it from your phone or set it on a schedule, which makes it a little easier to stay on top of everything during a busy day.…