I've crossed 6 times in a day without consequence...
Originally Posted by
T.J. Bender
I've crossed the San Diego/Tijuana border by foot four times in one day (once there, once back, then there again when I realized I'd left my cell phone at a TJ restaurant, then back) without incident.
Devil's Advocacy: you are both US citizens or LPRs right? So you have an absolute right to cross as often as you want. I gather OP is not a citizen or LPR of the US.