You can get a $25 voucher to Restaurant.com for $2 again today.
Just head over and select your restaurant and use code: HOT at checkout.
Typically most restaurants will require a $35 minimum to use the certificates- so you can expect to pay $10 or so after your gift certificate for a $35 meal.
Also they will automatically add on the gratuity of 18%. Just check the fine print on the restaurant you select but overall I usually get very good feedback about these offers!
Head over to Restaurant.com to have a look. Note there are a handful of restaurants that are slightly more expensive. You will see them listed as $25 for $15 before you enter the promo code. Those work out to $3.

I have had positive experiences with these (redeemed in Sacramento). Dinner for two at a nice place (including tax and tip – and $2 for the coupon- makes dinner $20 – $25, instead of the usual $50.