Possible Clues:

• Sign at a convenience store
• Convenience store sign
• Indicator that bread is available?
• Welcome sign at a cash-only market
• "You can get $$$ here" sign, and a hint to 17-, 25-, 36- and 51-Across
• Convenience store sign (and a hint to this puzzle's theme)
• Assurance that you can get bread at a store
• Sign on a convenience store window
• Sign appealing to short people?
• Convenience-store sign